Laws which can be broken without any wrong to one's neighbor are a laughing-stock; and such laws, instead of restraining the appetites and lusts of mankind, serve rather to heighten them. Nitimur in vetitum semper, cupimusque negata [we always resist prohibitions, and yearn for what is denied us].

Freedom is self-determination.

. . . to know the order of nature, and regard the universe as orderly is the highest function of the mind.

Minds are not conquered by force, but by love and high-mindedness.

God is a thing that thinks.

Laws which prescribe what everyone must believe, and forbid men to say or write anything against this or that opinion, are often passed to gratify, or rather to appease the anger of those who cannot abide independent minds.

He who wishes to revenge injuries by reciprocal hatred will live in misery. But he who endeavors to drive away hatred by means of love, fights with pleasure and confidence; he resists equally one or many men, and scarcely needs at all the help of fortune. Those whom he conquers yield joyfully