You can never solve a problem on the level on which it was created. Insanity: doing the same thing over and over again and expecting different results. A life lived for others is a life worthwhile.

Without changing our pattern of thought, we will not be able to solve the problems we created with our current patterns of thought

Galileo had already made a significant beginning toward a knowledge of the law of motion. He discovered the law of inertia and the law of bodies falling freely in the gravitational field of the earth.

What can the schools do to defend democracy? Should they preach a specific political doctrine? I believe they should not. If they are able to teach young people to have a critical mind and a socially oriented attitude, they will have done all that is necessary.

In the middle of difficulties lie opportunities.

Our task is to widen our circle of compassion to include all living beings and all of nature

One cannot learn so well as by experiencing it oneself.