It takes a different kind of thinking to solve a problem than the kind of thinking which produced the problem.

But the personality that finally emerges is largely formed by the environment in which a man happens to find himself during his development, by the structure of the society in which he grows up, by the tradition of that society, and by its appraisal of particular types of behavior.

The scientist finds his reward in what Henri Poincare calls the joy of comprehension, and not in the possibility of application to which any discovery may lead.

We are part of the whole which we call the universe, but it is an optical delusion of our mind that we think we are separate. This separateness is like a prison for us. Our job is to widen the circle of our compassion so we feel connected with all people and situations.

Gravity is a response to geometry.

An empty stomach is not a good political adviser.

The devil has put a penalty on all things we enjoy in life. Either we suffer in our health, or we suffer in our soul, or we get fat.