Sen. John McCain, a Republican from Arizona, said his brain cancer is “very, very serious,” meaning he doesn’t expect to live much longer.

At the age of 81, McCain understands that everybody’s time eventually comes and he speaks openly about that, pledging to fight cancer while simultaneously acknowledging gratitude for a “life well-lived.”

The former Presidential candidate often finds himself in the middle of the news because he is a conservative known to break from his party. McCain recently said he couldn’t vote for the GOP health care bill, hurting its chances of passage. It was the second time this year that McCain has said no as a key vote.

But he’s also been a staunch supporter of the military, as one of the nation’s most highly-regarded veterans.

When Sen. McCain returned to the Senate floor earlier this year after the brain cancer diagnosis he received an emotional ovation and hugs from elected officials including Republicans and Democrats.

He is an American and epitomizes that in office through service in the U.S. Senate. That’s why both sides respect the man even if they sometimes disagree.

No politician can be right all the time, but they should all aspire to walk tall in service like Sen. John McCain. He sets the bar high.