I never forgive, but I always forget.

In effort Happiness idleness life pleasure superstition support trouble work The superstition that all our hours of work are a minus quantity in the happiness of life, and all the hours of idleness are plus ones, is a most ludicrous and pernicious doctrine, and its greatest support comes from our not taking sufficient trouble, not making a real effort, to make work as near pleasure as it can be.

The power of authority is never more subtle and effective than when it produces a psychological atmosphere or climate favorable to the life of certain modes of belief, unfavorable, and even fatal, to the life of others.

It has always been desirable to tell the truth, but seldom if ever necessary.

I am more or less happy when being praised, not very comfortable when being abused, but I have moments of uneasiness when being explained.

Enthusiasm moves the world.

Kant, as we all know, compared moral law to the starry heavens, and found them both sublime. On the naturalistic hypothesis we should rather compare it to the protective blotches on a beetle's back, and find them both ingenious.