Happiness is a virtue, not its reward.
Indulge yourself in pleasures only in so far as they are necessary for the preservation of health.
Those who are believed to be most abject and humble are usually most ambitious and envious.
What everyone wants from life is continuous and genuine happiness.
Freedom is self-determination.
Superstition, then, is engendered, preserved, and fostered by fear.
He who regulates everything by laws, is more likely to arouse vices than reform them.
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.
Hatred is increased by being reciprocated, and can on the other hand be destroyed by love.
Whatsoever is contrary to nature is contrary to reason, and whatsoever is contrary to reason is absurd.
Desire is the essence of a man.
Sadness diminishes a man's powers
I have made a ceaseless effort not to ridicule, not to bewail, not to scorn human actions, but to understand them.
Nature has no goal in view, and final causes are only human imaginings.
He, who knows how to distinguish between true and false, must have an adequate idea of true and false.
In the mind there is no absolute or free will; but the mind is determined to wish this or that by a cause, which has also been determined by another cause, and this last by another cause, and so on to infinity.
To give aid to every poor man is far beyond the reach and power of every man. Care of the poor is incumbent on society as a whole.
[Believers] are but triflers who, when they cannot explain a thing, run back to the will of God; this is, truly, a ridiculous way of expressing ignorance.
He who loves God cannot endeavor that God should love him in return.
We feel and know that we are eternal.
Do not weep; do not wax indignant. Understand.
Men who are ruled by reason desire nothing for themselves which they would not wish for all mankind.
Academies that are founded at public expense are instituted not so much to cultivate men's natural abilities as to restrain them.
Everything excellent is as difficult as it is rare.
I believe that a triangle, if it could speak, would say that God is eminently triangular, and a circle that the divine nature is eminently circular; and thus would every one ascribe his own attributes to God.
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