The minority, the ruling class at present, has the schools and press, usually the Church as well, under its thumb. This enables it to organize and sway the emotions of the masses, and make its tool of them.

Physics is essentially an intuitive and concrete science. Mathematics is only a means for expressing the laws that govern phenomena.

Man owes his strength in the struggle for existence to the fact that he is a social animal.

I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.

My primary process of perceiving is muscular and visual.

Knowledge is realizing that the street is one way; wisdom is looking in both directions anyway.

A person starts to live when he can live outside himself.