Human reason borrowed many arts from the instinct of animals.

Reason elevates our thoughts as high as the stars, and leads us through the vast space of this mighty fabric; yet it comes far short of the real extent of our corporeal being.

Whoever commits a fraud is guilty not only of the particular injury to him who he deceives, but of the diminution of that confidence which constitutes not only the ease but the existence of society.

"I fly from pleasure," said the prince, "because pleasure has ceased to please; I am lonely because I am miserable, and am unwilling to cloud with my presence the happiness of others."

It is the quality of patriotism to be jealous and watchful, to observe all secret machinations, and to see publick dangers at a distance. The true lover of his country is ready to communicate his fears, and to sound the alarm, whenever he perceives the approach of mischief. But he sounds no alarm, when there is no enemy; he never terrifies his countrymen till he is terrified himself. The patriotism, therefore, may be justly doubted of him, who professes to be disturbed by incredibilities.

Such are the vicissitudes of the world, through all its parts, that day and night, labor and rest, hurry and retirement, endear each other; such are the changes that keep the mind in action: we desire, we pursue, we obtain, we are satiated; we desire something else and begin a new pursuit.

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