I am more affected by the attractions of virtue than by the deformities of vice; I turn gently away from the wicked and I fly to meet the good. If there is in a literary work, in a character, in a picture, in a statue, a beautiful spot, that is where my eyes rest; I see only that, I remember only that, all the rest is well-nigh forgotten. What becomes of me when the whole work is beautiful!

Posterity for the philosopher is what the other world is for the religious man.

All things must be examined, debated, investigated without exception and without regard for anyone's feelings... We must run roughshod over all these ancient puerilities, overturn the barriers that reason never erected, give back to the arts and sciences the liberty that is so precious to them.

There is only one virtue, justice; only one duty, to be happy; only one corollary, not to overvalue life and not to fear death.

Isn't it better to have men being ungrateful than to miss a chance to do good?

If your little savage were left to himself and be allowed to retain all his ignorance, he would in time join the infant's reasoning to the grown man's passion, he would strangle his father and sleep with his mother.

There comes a moment during which almost every girl or boy falls into melancholy; they are tormented by a vague inquietude which rests on everything and finds nothing to calm it. They seek solitude; they weep; the silence to be found in cloister attracts them: the image of peace that seems to reign in religious houses seduces them. They mistake the first manifestations of a developing sexual nature for the voice of God calling them to Himself; and it is precisely when nature is inciting them that they embrace a fashion of life contrary to nature's wish.