Seeing that the Senses cannot decide our dispute, being themselves full of uncertainty, we must have recourse to Reason; there is no reason but must be built upon another reason: so here we are retreating backwards to infinity.

After a tongue has once got the knack of lying, it is not to be imagined how impossible almost it is to reclaim it. Whence it comes to pass, that we see some men, who are otherwise very honest, so subject to this vice.

Man is the sole animal whose nudities offend his own companions, and the only one who, in his natural actions, withdraws and hides himself from his own kind.

Our great and glorious masterpiece is to live appropriately.

The good opinion of the vulgar is injurious.

If people must be talking about me, I would have it to be truthfully and justly. I would willingly return from the next world to contradict any person who described me other than I was, although he did it to honour me.

Custom is a violent and treacherous school mistress. She, by little and lithe, slyly and unperceived, slips in the foot of her authority; but having by this gentle and humble beginning, with the benefit of time, fixed and established it, she then unmasks a furious and tyrannic countenance, against which we have no more the courage or the power so much as to lift up our eyes.