They who most loudly clamour for liberty do not most liberally grant it.

Every man has frequent grievances which only the solicitude of friendship will discover and remedy, and which would remain for ever unheeded in the mighty heap of human calamity, were it only surveyed by the eye of general benevolence equally attentive to every misery.

Novelty is indeed necessary to preserve eagerness and alacrity; but art and nature have stores inexhaustible by human intellects, and every moment produces something new to him who has quickened his faculties by diligent observation.

The true art of memory is the art of attention.

The complaint, therefore, that all topicks are preoccupied, is nothing more than the murmur of ignorance or idleness, by which some discourage others, and some themselves; the mutability of mankind will always furnish writers with new images, and the luxuriance of fancy may always embellish them with new decorations.

An old friend never can be found, and nature has provided that he cannot easily be lost.

Human reason borrowed many arts from the instinct of animals.