It is proper to the role of the scientist that he not merely find new truth and communicate it to his fellows, but that he teach, that he try to bring the most honest and intelligible account of new knowledge to all who will try to learn.

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.

The history of science is rich in example of the fruitfulness of bringing two sets of techniques, two sets of ideas, developed in separate contexts for the pursuit of new truth, into touch with one another.

The optimist thinks this is the best of all possible worlds. The pessimist fears it is true.

A pragmatist is concerned with results, not reality.

Both the man of science and the man of action live always at the edge of mystery, surrounded by it.

I remembered the line from the Hindu scripture, the Bhagavad-Gita... "Now I am become Death, the destroyer of worlds." I suppose we all thought that, one way or another.