I am the wisest man alive, for I know one thing, and that is that I know nothing.
Living never wore one out so much as the effort not to live.
I hated every minute of training, but I said, 'Don't quit. Suffer now and live the rest of your life as a champion.
We make a living by what we get, but we make a life by what we give.
I believe that whatever we do or live for has its causality; it is good, however, that we cannot see through to it.
He who has a why to live for can bear almost any how.