The open society, the unrestricted access to knowledge, the unplanned and uninhibited association of men for its furtherance-these are what may make a vast, complex, ever growing, ever changing, ever more specialized and expert technological world, nevertheless a world of human community.

The most beautiful philosophical song existing in any known tongue.

Any man whose errors take ten years to correct is quite a man.

Science is not everything, but science is very beautiful.

'It worked.' (said after witnessing the first atomic detonation).

The best way to send information is to wrap it up in a person.

All history teaches us that these questions that we think the pressing ones will be transmuted before they are answered, that they will be replaced by others, and that the very process of discovery will shatter the concepts that we today use to describe our puzzlement.