History is a voice forever sounding across the centuries the laws of right and wrong. Opinions alter, manners change, creeds rise and fall, but the moral law is written on the tablets of eternity.

Courage is, on all hands, considered as an essential of high character.

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

The best that we can do for one another is to exchange our thoughts freely; and that, after all, is about all.

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.

As we advance in life, we learn the limits of our abilities.

The superstition of science scoffs at the superstition of faith.