be living proof of something/that...
to show by your actions or qualities that a particular fact is true (用行动或品格)证明...属实

These figures are living proof of the government's incompetence.
这些数字是对政府无能的有力证明.

He plays tennis and golf. He's living proof that a heart attack doesn't mean the end of an active life.
他又打网球又打高尔夫球.一次心脏病发作并不意味着无法过有活力的生活,他就是活生生地证据.

you haven't lived:你白活了
used to tell sb that if they have not had a particular experience their life is not complete.

You've never been to New York? You haven't lived!
你从未去过纽约?你真是白活了.