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.

Now I am become death, the destroyer of worlds. (quoting the Bhagavad-Gita after witnessing the first Nuclear explosion.)

Science is not everything, but science is very beautiful.

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

It is a profound and necessary truth that the deep things in science are not found because they are useful; they are found because it was possible to find them.

There must be no barriers to freedom of inquiry... There is no place for dogma in science. The scientist is free, and must be free to ask any question, to doubt any assertion, to seek for any evidence, to correct any errors. Our political life is also predicated on openness. We know that the only way to avoid error is to detect it and that the only way to detect it is to be free to inquire. And we know that as long as men are free to ask what they must, free to say what they think, free to think what they will, freedom can never be lost, and science can never regress.

I can't think that it would be terrible of me to say - and it is occasionally true - that I need physics more than friends.