We know nothing at all. All our knowledge is but the knowledge of schoolchildren. The real nature of things we shall never know.

Everything is energy and that’s all there is to it.

I believe that the horrifying deterioration in the ethical conduct of people today stems from the mechanization and dehumanization of our lives. A disastrous by-product of the development of the scientific and technical mentality. We are guilty. Man grows cold faster than the planet he inhabits.

You can't resolve a dilemma with all the very same mind that made it

If we knew what it was we were doing, it would not be called research, would it?

Science will stagnate if it is made to serve practical goals.

Experience is knowledge. All the rest is information.