Mark Twain
The fact that man knows right from wrong proves his intellectual superiority to other creatures; but the fact that he can do wrong proves his moral inferiority to any creature that cannot.
More quotes and aphorisms
Giving up smoking is the easiest thing in the world...The man with insight enough to admit his limitations...Of all the animals...For man, as for flower and beast and bird...The great thing about getting older...I say always follow your passion, no matter what...