Age is an issue of mind over matter. If you don't mind, it doesn't matter. There is no sadder sight than a young pessimist. A poem is never finished, only abandoned. Some people are so afraid to die that they never begin to live.
Greatness is the dream of youth realized in old age.
A witty saying proves nothing. I disapprove of what you say, but I will defend to the death your right to say it. Doubt is not a pleasant condition, but certainty is absurd. I am not young enough to know everything. The only way to get rid of a temptation is to yield to it.