In every true searcher of Nature there is a kind of religious reverence, for he finds it impossible to imagine that he is the first to have thought out the exceedingly delicate threads that connect his perceptions

The same thinking that has led you to where you are is not going to lead you to where you want to go.

Communities tend to be guided less than individuals by conscience and a sense of responsibility. How much misery does this fact cause mankind! It is the source of wars and every kind of oppression, which fill the earth with pain, sighs and bitterness.

Love is a better teacher than duty.

Physical concepts are free creations of the human mind, and are not, however it may seem, uniquely determined by the external world.

The most important question a person can ask is, "Is the Universe a friendly place?

Experience is knowledge. All the rest is information.