Experience keeps a dear school, but tools will learn in no other.

Words are, of course, the most powerful drug used by mankind.

The exercise of power is determined by thousands ofinteractions between the world of the powerful and that of the powerless, allthe more so because these worlds are never divided by a sharp line: everyonehas a small part of himself in both.

I have oftenregretted my speech, never my silence.

Night is the blotting paper of many sorrows.

Too late is the medicine prepared, when the disease has strengthened by long delay.

Almost all of our relationships begin and most of them continue as forms of mutual exploitation, a mental or physical barter, to be terminated when one or both parties run out of goods.

Work without faith is like at attempt to reach a bottom-less pit.

To do what others cannot do is talent. To do what talent cannot do is genius.

A manshould never be ashamed to own he has been in the wrong, which is but saying,in other words, that he is wiser today than he was yesterday.

Never answer a letter while you are angry.

Never play cat and mouse games if you are a mouse.