Ignorance is the dominion of absurdity.

To be happy is not the purpose for which you are placed in this world.

The superstition of science scoffs at the superstition of faith.

Philosophy goes no further than probabilities, and in every assertion keeps a doubt in reserve.

If you think you can temper yourself into manliness by sitting here over your books, it is the very silliest fancy that ever tempted a young man to his ruin. You cannot dream yourself into a character; you must hammer and forge yourself one.

No person is ever good for much, that hasn't been swept off their feet by enthusiasm between ages twenty and thirty

Fear is the parent of cruelty.