(Twain on Cain): it was his misfortune to live in a dark age that knew not the beneficent Insanity Plea
The man who is a pessimist before forty-eight knows too much; if he is an optimist after it he knows too little
I was young and foolish then; now I am old and foolish
The older I get, the more clearly I remember things that never happened.
We have no permanent brains until we are forty. Then they begin to harden, presently they petrify, then business begins. Since forty I have been regular about going to bed and getting up -- and that is one of the main things.
There comes a time in every rightly constructed boy's life that he has a raging desire to go somewhere and dig for hidden treasure
We can't reach old age by another man's road. My habits protect my life but they would assassinate you.