History is a bucket of ashes.

I fall asleep in the full and certain hope That my slumber shall not be broken; And that, though I be all-forgetting, Yet shall I not be all-forgotten, But continue that life in the thoughts and deeds of those I have loved.

All animals, except man, know that the principal business of life is to enjoy it - and they do enjoy it as much as man and other circumstances will allow.

Adversity, if a man is set down to it by degrees, is more supportable with equanimity by most people than any great prosperity arrived at in a single lifetime.

If [science] tends to thicken the crust of ice on which, as it were, we are skating, it is all right. If it tries to find, or professes to have found, the solid ground at the bottom of the water it is all wrong. Our business is with the thickening of this crust by extending our knowledge downward from above, as ice gets thicker while the frost lasts; we should not try to freeze upwards from the bottom.

There are two classes [of scientists], those who want to know, and do not care whether others think they know or not, and those who do not much care about knowing, but care very greatly about being reputed as knowing.

How often do we not see children ruined through the virtues, real or supposed, of their parents?