We should live and learn; but by the time we've learned, it's too late to live.
Youth is a silly, vapid state, Old age with fears and ills is rife; This simple boon I beg of Fate - A thousand years of Middle Life.
I am more fond of achieving than striving. My theories must prove to be facts or be discarded as worthless. My efforts must soon be crowned with success, or discontinued.
A blunder at the right moment is better than cleverness at the wrong time.
Happiness is the ability to recognize it.
Of two evils, choose the prettier.