If you are not skillful enough to sketch a man jumping out of a window in the time it takes him to fall from the fourth storey to the ground, you will never be able to produce great works.

Experience has two things to teach. The first is that we must correct a great deal and the second, that we must not correct too much.

I live in company with a body, a silent companion, exacting and eternal.

If one considered life as a simple loan, one would perhaps be less exacting. We possess actually nothing; everything goes through us.

You increase your self-respect when you feel you've done everything you ought to have done, and if there is nothing else to enjoy, there remains that chief of pleasures, the feeling of being pleased with oneself. A man gets an immense amount of satisfaction from the knowledge of having done good work and of having made the best use of his day, and when I am in this state I find that I thoroughly enjoy my rest and even the mildest forms of recreation.

Do all the work you can; that is the whole philosophy of the good way of life.

Nature creates unity even in the parts of a whole.