I tell my students to try early in life to find an unattainable objective.

All War Departments are now Defense Departments. This is all part of the doubletalk of our time. The aggressor is always on the other side.

The only point of government is to safeguard and foster life.

We are living in a world in which all wars are wars of defense.

As you lecture, you keep watching the faces, and information keeps coming back to you all the time.

Four elements, Hydrogen, carbon, oxygen and nitrogen, also provide an example of the astonishing togetherness of our universe. They make up the "organic" molecules that constitute living organisms on a planet, and the nuclei of these same elements interact to generate the light of its star. Then the organisms on the planet come to depend wholly on that starlight, as they must if life is to persist. So it is that all life on the Earth runs on sunlight. [Referring to photosynthesis]

A scientist should be the happiest of men. Not that science isn't serious; but as everyone knows, being serious is one way of being happy, just as being gay is one way of being unhappy.