Man's sensitivity to the little things and insensitivity to the greatest are the signs of a strange disorder.

When we wish to correct with advantage, and to show another that he errs, we must notice from what side he views the matter, for on that side it is usually true.

The state of man is inconstancy, ennui, anxiety.

Law, without force, is impotent.

Men seek rest in a struggle against difficulties; and when they have conquered these, rest becomes insufferable.

The least movement is of importance to all nature. The entire ocean is affected by a pebble.

As we speak of poetical beauty, so ought we to speak of mathematical beauty and medical beauty. But we do not do so; and that reason is that we know well what is the object of mathematics, and that it consists in proofs, and what is the object of medicine, and that it consists in healing. But we do not know in what grace consists, which is the object of poetry.