The key to happiness is not to get more, but to enjoy what we have and to fill the empty frame of our lives instead of enlarging it.

Here we stand in the middle of this new world with our primitive brain, attuned to the simple cave life, with terrific forces at our disposal, which we are clever enough to release, but whose consequences we cannot comprehend.

Research is four things: brains with which to think, eyes with which to see, machines with which to measure and, fourth, money.

The source of this energy is the sun's radiation.

"This celebration here tells me that this work is not hopeless. I thank you for this teaching with all my heart and lift my glass to human solidarity, to the ultimate victory of knowledge, peace, good-will and understanding."

The American Cancer Society tried to ruin my research foundation.

Knowledge is a sacred cow, and my problem will be how we can milk her while keeping clear of her horns.