One of the most painful circumstances of recent advances in science is that each one makes us know less than we thought we did

What is wanted is not the will to believe, but the will to find out, which is the exact opposite.

There was a law in Connecticut - I believe it is still formally unrepealed - making it illegal for a man to kiss his wife on Sunday.

Machines deprive us of two things which are certainly important ingredients of human happiness, namely, spontaneity and variety.

Teachers are more than any other group the guardians of civilization.

Protestants, from the first, have been distinguished from their opponents by what they do not believe; to throw over one more dogma is, therefore, merely to carry the movement one stage further. Moral fervor is the essence of the matter.

Philosophy, from the earliest times, has made greater claims, and achieved fewer results, than any other branch of learning.