We shall make mistakes; and if we let these mistakes frighten us from our work we shall show ourselves weaklings.

There is superstition in science quite as much as there is superstition in theology, and it is all the more dangerous because those suffering from it are profoundly convinced that they are freeing themselves from all superstition.

The most successful politician is he who says what the people are thinking most often in the loudest voice.

It is only the warlike power of a civilized people that can give peace to the world.

Americanism is a question of spirit, of conviction and purpose, not creed or birthplaces. The test of our worth is the service we render.

It is essential that there should be organization of labor. This is an era of organization. Capital organizes and therefore labor must organize.

Nobody cares how much you know, until they know how much you care.