Inquiry into reality begins with the recognition of our ignorance.

I don't believe in anything, and that gives me great freedom.

"The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all."

Lock up your libraries if you like; but there is no gate, no lock, no bolt that you can set upon the freedom of my mind.

The material has its own intelligence.

仅仅做到我们的最好是不够的,有时候我们得达到要求。