We scientists, whose tragic destination has been to help in making the methods of annihilation more gruesome and more effective, must consider it our solemn and transcendent duty to do all in our power in preventing these weapons from being used for the brutal purpose for which they were invented.

My passionate sense of social justice and social responsibility has always contrasted oddly with my pronounced lack of need for direct contact with other human beings and human communities. I am truly a 'lone traveler' and have never belonged to my country, my home, my friends, or even my immediate family, with my whole heart; in the face of all these ties, I have never lost a sense of distance and a need for solitude.

To raise new questions, new possibilities, to regard old problems from a new angle, requires creative imagination and marks real advance in science.

You cannot prevent and prepare for war at the same time.

God is a scientist, not a magician.

But nature did not deem it her business to make the discovery of her laws easy for us.

If everybody lived as I do, surely the writing of romance novels would never have come into being.