Create, artist, do not talk.

That we understand something perfectly, that we accomplish something better than anyone else around us, that is what matters.

What people call the spirit of the times is mostly their own spirit in which the times mirror themselves.

It is quite beyond me how anyone can believe God speaks to us in books and stories. If the world does not directly reveal to us our relationship to it, if our hearts fail to tell us what we owe ourselves and others, we shall assuredly not learn it from books, which are at best designed but to give names to our errors.

Don't dissipate your powers; strive to concentrate them. Genius thinks it can do whatever it sees others doing, but it will surely repent of every ill-judged outlay.

People always fancy that we must become old to become wise; but, in truth, as years advance, it is hard to keep ourselves as wise as we were.

Hypotheses are only the pieces of scaffolding which are erected round a building during the course of construction, and which are taken away as soon as the edifice is completed.