Hypotheses are the scaffolds which are erected in front of a building and removedd when the building is completed. They are indispensable to the worker; but the worker must not mistake the scaffolding for the building.

An angel! Nonsense! Everybody so describes his mistress; and yet I find it impossible to tell you how perfect she is, or why she is so perfect: suffice it to say she has captivated all my senses.

Stupidity is without anxiety.

Still this planet's soil for noble deeds grants scope abounding.

The artist who is not also a craftsman is no good; but, alas, most of our artists are nothing else.

I have possessed that heart, that noble soul, in whose presence I seemed to be more than I really was, because I was all that I could be.

But one must know where one stands, and where the others wish to go.