Religion will not regain its old power until it can face change in the same spirit as does science.

With the sense of sight, the idea communicates the emotion, whereas, with sound, the emotion communicates the idea, which is more direct and therefore more powerful.

We must produce a great age, or see the collapse of the upward striving of our race.

Life is an offensive, directed against the repetitious mechanism of the Universe.

The way in which the persecution of Galileo has been remembered is a tribute to the quiet commencement of the most intimate change in outlook which the human race had yet encountered. Since a babe was born in a manger, it may be doubted whether so great a thing has happened with so little stir

It is more important that a proposition be interesting than that it be true.

The preternatural solemnity of a good many of the professionally religious is to me a point against them.