One lives one's life under constant tension, until it's time to go for good

I cannot conceive of a God who rewards and punishes his [sic] creatures, or has a will of the type of which we are conscious ourselves.

All conditions and all circumstances in our lives are a result of a certain level of thinking. If we want to change the conditions and circumstances, we have to change the level of thinking that is responsible for it.

The individual feels the vanity of human desires and aims, and the nobility and marvelous order which are revealed in nature and in the world of thought. He feels the individual destiny as an imprisonment and seeks to experience the totality of existence as a unity full of significance.

Science has gone a long way toward helping man to free himself from the burden of hard labor; yet, science itself is not a liberator. It creates means, not goals. It is up to men to utilize those means to achieve reasonable goals.

Without the sense of fellowship with men of like mind... life would have seemed to me empty.

It is a miracle that curiosity survives formal education.