No one who achieves success does so without acknowledging the help of others. The wise and confident acknowledge this help with gratitude.

Each generation criticizes the unconscious assumptions made by its parent. It may assent to them, but it brings them out in the open.

The worst that happened to men of science was that Galileo suffered an honorable detention and a mild reproof, before dying peacefully in his bed.

The art of progress is to preserve order amid change, and to preserve change amid order. Life refuses to be embalmed alive. The more prolonged the halt in some unrelieved system of order, the greater the crash of the dead society.

The antithesis between a technical and a liberal education is fallacious. There can be no adequate technical education which is not liberal, and no liberal education which is not technical.

There is no more common error than to assume that, because prolonged and accurate mathematical calculations have been made, the application of the result to some fact of nature is absolutely certain.

Fertilization of the soul is the reason for the necessity of art.