The real scholar learns how to evolve the unknown from the known, and draws near the master.

One should not wish anyone disagreeable conditions of life; but for him who is involved in them by chance, they are touchstones of characters and of the most decisive value to man.

Everything factual is, in a sense, theory. The blue of the sky exhibits the basic laws of chromatics. There is no sense in looking for something behind phenomena: they are theory.

I will be lord over myself.

One should not search for anything behind the phenomena. They themselves are the message.

Generosity wins favour for everyone, especially when it is accompanied by modesty.

There are but few who have ideas and are, at the same time, capable of action. Ideas enlarge but stymie, action enlivens but confines.