In sovereignty there are no gradations.

Vulgar and inactive minds confound familiarity with knowledge, and conceive themselves informed of the whole nature of things, when they are shown their form or told their use.

Revenge is an act of passion; vengeance of justice. Injuries are revenged; crimes are avenged.

Most men think indistinctly, and therefore cannot speak with exactness . . .

If pleasure was not followed by pain, who would forbear it?

Pleasure that is obtained by unreasonable and unsuitable cost must always end in pain.

Some desire is necessary to keep life in motion, and he whose real wants are supplied must admit those of fancy.