The economists will have to revise their theories of value.

When a man, after long years of searching, chances upon a thought which discloses something of the beauty of this mysterious universe, he should not therefore be personally celebrated. He is already sufficiently paid by his experience of seeking and finding.

The real problem is in the hearts and minds of men. It is not a problem of physics but of ethics. It is easier to denature plutonium than to denature the evil spirit of man.

Each act is an island in time, to be judged on its own.

The development of general ability for independent thinking and judgment should always be placed foremost, not the acquisition of special knowledge.

... the desire for truth must take precedence over all other desires.

The really valuable method of thought to arrive at a logically coherent system is intuition.