There are people who think that everything one does with a serious face is sensible.

We say that someone occupies an official position, whereas it is the official position that occupies him.

Prejudices are so to speak the mechanical instincts of men: through their prejudices they do without any effort many things they would find too difficult to think through to the point of resolving to do them.

We cannot remember too often that when we observe nature, and especially the ordering of nature, it is always ourselves alone we are observing.

A man is never more serious than when he praise himself.

A book is a mirror: if an ape looks into it an apostle is hardly likely to look out.

How did mankind ever come by the idea of liberty? What a grand thought it was!