Paper is to write things down that we need to remember. Our brains are used to think.

It never hurts to think too highly of a person; often they become ennobled and act better because of it.

I don't have any romanticism about any part of my past. I think of it only since it gave me pleasure or helped me grow psychologically. That is the only thing that interests me about yesterday. I don't believe in yesterday, by the way. You know I don't believe in yesterday. I am only interested in what I am doing now.

Have more than you show, Speak less than you know.

The highest wisdom has but one science - the science of the whole - the science explaining the whole creation and man's place in it.

We can know only that we know nothing. And that is the highest degree of human wisdom.