The maturity of man — that means, to have reacquired the seriousness that one had as a child at play.
Maturity is simply the process of discovering that everything you believed in when you were young is false and that all the things you refused to believe in turn out to be true.
Maturity is a bitter disappointment for which no remedy exists, unless laughter can be said to remedy anything.
I have lived a great deal among grown-ups. I have seen them intimately, close at hand. And that hasn’t much improved my opinion of them.