Where a man has a passion for meditating without the capacity of thinking, a particular idea fixes itself fast, and soon creates a mental disease.

Giving is the business of the rich.

The clever reader who is capable or reading between these lines what does not stand written in them but is nevertheless implied will be able to form some conception.

With the growth of knowledge our ideas must from time to time be organized afresh. The change takes place usually in accordance with new maxims as they arise, but it always remains provisional.

The true, prescriptive artist strives after artistic truth; the lawless artist, following blind instinct, after an appearance of naturalness. The one leads to the highest peaks of art, the other to its lowest depths.

Science and art belong to the whole world, and before them vanish the barriers of nationality.

Publishers are all cohorts of the devil; there must be a special hell for them somewhere.