be living proof of (something)

be living proof of (something)

To serve as an example for why a particular statement or concept is true. As a former slacker, I know that you can turn your life around if you work hard enough—I'm living proof of that.See also: living, of, proof

be ˌliving ˈproof of something

show something is true simply by being alive or existing: He plays tennis and golf. He’s living proof that a heart attack doesn’t mean the end of an active life.See also: living, of, proof, something