Hillary, don't run for president

Former Secretary of State Hillary Clinton, pictured in October 2012, has become one of the most powerful people in Washington. Here's a look at her life and career through the years:

Hillary Rodham, center, a lawyer for the Rodino Committee, and John Doar, left, chief counsel for the committee, bring impeachment charges against President Richard Nixon in the Judiciary Committee hearing room at the U.S. Capitol in 1974.

Arkansas Gov. Bill Clinton helps first lady Rosalynn Carter on a campaign swing through Arkansas in June 1979. Also seen is Hillary Clinton (center background).

Bill Clinton embraces his wife shortly after a stage light fell near her on January 26, 1992. They talk to Don Hewitt, producer of the CBS newsmagazine "60 Minutes."

With Hillary, Democratic presidential candidate Bill Clinton waves to the crowd during his victory party after winning the Illinois primary on March 17, 1992.

Al Gore, from left, his wife, Tipper, Bill Clinton and Hillary Clinton wave to supporters at the Chautauqua Institution in Chautauqua, New York, on August 23, 1992, after they gave speeches on family values.

Clinton gestures at a campaign rally November 3, 1992, in Denver. After taking office, President Bill Clinton chose his wife to head a special commission on health care reform, the most significant public policy initiative of his first year in office.

Bill and Hillary Clinton have a laugh together on Capitol Hill in 1993.

Clinton pours herself a cup of tea during her testimony to the Senate Education and Labor Committee on health care reform in 1993.

Clinton speaks at George Washington University on September 10, 1993, in Washington, during her husband's first term.

Clinton, left, waves to the media on January 26, 1996, as she arrives at federal court in Washington for an appearance before a grand jury. The first lady was subpoenaed to testify as a witness in the investigation of the Whitewater land deal in Arkansas.

Hillary Clinton looks on as President Bill Clinton addresses the Monica Lewinsky scandal in the Roosevelt Room at the White House on January 26, 1998.

Hillary and Bill Clinton arrive at Foundry United Methodist Church on August 16, 1998, in Washington. He became the first sitting president to testify before a grand jury when he testified via satellite about the Monica Lewinsky matter.

Clinton shakes hands during a St. Patrick's Day parade in the Sunnyside neighborhood of Queens, New York, on March 5, 2000.

Clinton waves to the crowd as she arrives on the stage at the Democratic National Convention on August 14, 2000, at the Staples Center in Los Angeles.

Clinton campaigns for a Senate seat at Grand Central Station on October 25, 2000, in New York.

First lady Hillary Clinton is sworn in as a senator in a reenactment ceremony with President Bill Clinton, from left, nephew Tyler, daughter Chelsea, brother Hugh Rodham, mother Dorothy Rodham and Vice President Al Gore in the Old Senate Chamber on Capitol Hill on January 3, 2001, in Washington.

Andrew Cuomo, from left, Eliot Spitzer and Clinton celebrate with the crowd of Democratic supporters after their wins in their various races on November 7, 2006, in New York.

Clinton speaks during a post-primary rally on January 8, 2007, at Southern New Hampshire University in Manchester, New Hampshire.

The Clintons pay a visit to the 92nd Annual Hopkinton State Fair on September 2, 2007, in Contoocook, New Hampshire.

Clinton speaks at a fall kickoff campaign rally on September 2, 2007, in Portsmouth, New Hampshire.

Clinton addresses a question during a Democratic presidential candidates debate at Dartmouth College in Hanover, New Hampshire, on September 26, 2007. Also pictured are U.S. Rep. Dennis Kucinich of Ohio, left, and former U.S. Sen. Mike Gravel of Alaska.

Felipe Bravo, left, and Christian Caraballo are covered with Hillary Clinton stickers in downtown Manchester, New Hampshire, on January 8, 2008.

Clinton campaigns with her daughter, Chelsea, on January 1, 2008, in Council Bluffs, Iowa, two days ahead of the January 3 state caucus.

Sen. Clinton waves as she speaks to supporters at the National Building Museum on June 7, 2008, in Washington. Clinton thanked her supporters and urged them to back Sen. Barack Obama to be the next president of the United States.

Barack Obama and Clinton talk on the plane on their way to a Unity Rally in Unity, New Hampshire, on June 27, 2008.

U.S. Democratic presidential candidate Barack Obama watches Sen. Hillary Clinton address the Democrate National Convention at a Democratic supporters' group in Billings, Montana, on August 26, 2008. The two endured a long, heated contest for the 2008 nomination.

Sen. Charles Schumer, left, looks toward Secretary of State designate Clinton as committee chairman Sen. John Kerry, center, looks on during nomination hearings on January 13, 2009, on Capitol Hill.

Clinton testifies during her confirmation hearing for secretary of state before the Senate Foreign Relations Committee on Capitol Hill on January 13, 2009, in Washington.

Clinton dances with a local choir as while visiting the Victoria Mxenge Housing Project in Philippi on the outskirts of Cape Town, Souith Africa, on August 8, 2009.

Clinton looks through binoculars toward North Korea during a visit to observation post Ouellette at the Demilitarized Zone separating the two Koreas in Panmunjom on July 21, 2010.

Clinton walks up the steps to her aircraft at sunset as she leaves an ASEAN meeting July 23, 2010, in Hanoi, Vietnam.

From left: Hillary and Bill Clinton pose on the day of their daughter Chelsea's wedding to Marc Mezvinsky at the Astor Courts Estate on July 31, 2010, in Rhinebeck, New York.

U.S. President Barack Obama and Clinton observe a moment of silence before a NATO meeting on November 19, 2010, in Lisbon, Portugal.

Clinton listens as Turkish Foreign Minister Ahmet Davutoglu (not in picture) makes a brief statement before a bilateral meeting at the State Department in Washington on November 29, 2010.

Clinton shakes hands with a child during an unannounced walk through Tahrir Square in Cairo, Egypt, on March 16, 2011.

President Barack Obama, Vice President Joe Biden, Clinton and members of the national security team receive an update on the mission against Osama bin Laden in the Situation Room of the White House on May 1, 2011.

Clinton checks her PDA upon departure in a military C-17 plane from Malta bound for Tripoli, Libya, on October 18, 2011.

Clinton speaks as Hamid Karzai, president of Afghanistan, listens during a news conference at the presidential palace in Kabul on July 7, 2012.

Clinton arrives at Ben Gurion International Airport in Lod, outside Tel Aviv, Israel, on July 15, 2012.

Clinton looks on as President Barack Obama makes a statement in response to the attack at the U.S. Consulate in Libya on September 12, 2012 at the Rose Garden of the White House.

Clinton applauds Aung San Suu Kyi during a ceremony where Suu Kyi was presented with the Congressional Gold Medal on September 19, 2012 in the Rotunda of the Capitol in Washington, DC.

Former U.S. President Bill Clinton kisses his wife after introducing her at the Clinton Global Initiative annual meeting on September 24, 2012 in New York City.

Clinton shakes hands with Libyan President Mohamed Magariaf on September 24, 2012 in New York.

Clinton stands during a press conference following meetings at the Prime Minister's Office in Pristina, Kosovo, on October 31, 2012. Clinton said that Kosovo's unilaterally declared independence, fiercely opposed by Serbia, was 'not up for discussion'.

Clinton chats with Myanmar opposition leader Aung San Suu Kyi before President Barack Obama speaks at the University of Yangon in Yangon on November 19, 2012.

President Barack Obama looks at Clinton before the start of a bilateral meeting with Japanese Prime Minister Yoshihiko Noda, far right, during the East Asian Summit at the Peace Palace in Phnom Penh, Cambodia, on November 20, 2012.

Israeli Prime Minister Benjamin Netanyahu shakes hands with Clinton at the prime minister's office November 20, 2012 in Jerusalem, Israel. Clinton arrived in Israel as efforts by Western and Arab diplomats to end the confrontation between Israel and Gaza have escalated.

Clinton arrives on December 4, 2012 for a meeting of foreign ministers from the 28 North Atlantic Treaty Organization (NATO) member-countries in Brussels to discuss Syria and Turkey's request for Patriot missiles to be deployed protectively on the Turkish-Syrian border.

Clinton receives a sports jersey and football helmet from Deputy Secretary Tom Nides, center, after returning to work on January 7, following a fall where she hit her head and doctors later detected a blood clot. The jersey had her last name on the top and with the number 112, which represents the number of countries that she has visited as Secretary of State.

Clinton and her husband arrive for the inauguration for President Barack Obama's second term at the U.S. Capitol on January 21.

Clinton testifies before the Senate Foreign Relations Committee on Capitol Hill on January 23, in Washington, DC. Lawmakers questioned Clinton about the security failures during the September 11 attacks against the U.S. mission in Benghazi, Libya, that led to the death of four Americans, including U.S. Ambassador Christopher Stevens.

First lady Michelle Obama, from left, and former first ladies Laura Bush, Hillary Clinton, Barbara Bush and Rosalynn Carter attend the opening ceremony of the George W. Bush Presidential Center in Dallas on April 25.

Bill Clinton and Hillary Clinton speak to guests at the Clinton Global Initiative on June 14 in Chicago.

Clinton poses for pictures at St. Andrews University in St. Andrews, Scotland, on September 13. Clinton received an honorary degree from the university.

James Moore: Hillary Clinton is brilliantly qualified to be president

Moore: But it is time for America to move on to a new generation of leaders

He says age is an important factor; do we want another Clinton dynasty?

Moore: Hillary can make a gracious exit; U.S. should look forward rather than back

Editor's note: James C. Moore, a Texan, is a business consultant and partner at Big Bend Strategies. He is co-author of "Bush's Brain: How Karl Rove Made George W. Bush Presidential" and a TV political analyst.

(CNN) -- Don't run, Hillary.

Nobody is saying the former secretary of state, New York senator, U.S. and Arkansas first lady, and Yale-trained attorney is not qualified for the White House. In fact, she may have one of the most impressive résumés to ever be submitted for the job. Clinton has a breadth of experience that indicates she has every capability needed to be president of the United States.

But it is time for America to move on.

The first argument against another Clinton candidacy is generational. Baby boomers need to release their arthritic fingers from the torch of leadership and pass it off to another generation. Bill Clinton, George W. Bush and Barack Obama will have accounted for 24 years of the presidency by 2016, which seems more than sufficient. Clinton's election potentially extends boomer influence in a manner that risks creating a generation gap that further increases political disaffection among young voters.

Age is another important consideration, regardless of howls of outrage on this question by her supporters. Clinton would be 69 when she raised her right hand for the oath of office. She would be the second-oldest person to become president -- younger than Ronald Reagan by several months.

The pressures of the White House amplify the afflictions of time. Arguably, an optimal president combines an earned wisdom and natural intellect with the residual energy of youth. No one does this by turning 70 during their first year as president, which would be Clinton's status.

Although doctors pronounced her perfectly healthy after a recent scare with a blood clot on the brain, the probabilities of geriatric disease in office are very real for someone who might be 77 at the end of a second term.

Hillary Clinton's hidden hand

Clinton 'wrestling' with 2016 run

Reagan's comportment during his last years suggests that he had already begun moving behind the veil of Alzheimer's. This is not ageism. An accumulation of years defines our range of capabilities, physically and intellectually, and the Clintons as well as the nation need to confront the question of whether a person in their mid-70s is the best to serve as president. The obvious answer is no.

There is, nonetheless, no underestimating the cultural importance of the first female president and the glory it will bestow upon history's grandest democracy. The Democratic Party, too, will have an interest in being the political organization that gave the country its first female as well as African-American presidents.

Clinton, who is properly positioned with experience, has other challenges that impede her getting a chapter in future textbooks as the first woman in the Oval Office.

America is weary of limited political choices and dynasties. A second Clinton presidency might culminate in 28 years of Clinton-Bush control. We are, more than ever, a nation that desperately needs to renew itself with what is different and hopeful and visionary. Unfortunately, there is too much that is predictable with a second Clinton candidacy.

No one needs a time machine to look into the future and see the grainy video in TV attack ads with a baritone voice rattling on about Benghazi or mumblings about how her husband enriched himself by accumulating a net worth of $55 million since leaving office.

"Don't the Clintons have enough?" the voice would ask. "And hasn't America had enough of the Clintons?"

In spite of the fact that Clinton's accomplishments as secretary of state are significant, including diplomatic efforts that averted a war between Israel and Hamas, she is likely to be forced to endure campaign onslaughts accusing her of character flaws for forgiving her husband's indiscretions, which means the electorate probably has to endure at least some painful flashbacks.

This is not, however, a recommendation to back away from a fight. Clinton has proved that her political knuckles are toughened with gristle, and she can skillfully marginalize absurd allegations from her opponents. Instead of running and winning a fierce campaign, there might be a more honorable endeavor for the former secretary of state.

There is always a right moment to leave the stage, and failing to recognize that timing can lead to a lingering image that, in the longer term, overwhelms the accomplishments of a person in the prime of their powers.

Hillary Clinton can make a gracious exit. Yes, she has every right to run for president and is brilliantly qualified for the job. That does not mean, however, she is the best person at this time in America's narrative.

There is also nothing inexorable about anyone's presidential candidacy, regardless of how vehemently it is argued by Clinton's backers. Presumptive candidacies, which appear initially like logical choices that are the consequence of devotion and hard politics, often tend toward failure. The Dole, McCain and Romney nominations, presumed candidates with generationally disconnected politics, have sundered the GOP's power for possibly decades.

Running for president because it is expected and seems like an obvious decision are clearly not the right motivations.

Clinton's service to her country has already transcended even the starry-eyed youthful dreams she shared with her husband. Beyond her time in office as U.S. senator, and as secretary of state, and as counsel to Bill during his presidency, the namesake foundation she leads with her husband and daughter is having a profound impact in this country and internationally, facilitating education, health care and nutritional programs. That nonprofit needs her guidance and initiative.

America, though, is ready for different choices representing a new generation for president.

Don't run, Hillary.

Follow us on Twitter @CNNOpinion.

Join us on Facebook/CNNOpinion.

The opinions expressed in this commentary are solely those of James C. Moore.