The more a man knows, the less he talks.

When he who hears does not know what he who speaks means, and when he who speaks does not know what he himself means, that is philosophy.

We are intelligent beings: intelligent beings cannot have been formed by a crude, blind, insensible being: there is certainly some difference between the ideas of Newton and the dung of a mule. Newton's intelligence, therefore, came from another intelligence

To enjoy life we must touch much of it lightly.

Every sensible man, every honest man, must hold the Christian sect in horror. But what shall we substitute in its place? you say. What? A ferocious animal has sucked the blood of my relatives. I tell you to rid yourselves of this beast, and you ask me what you shall put in its place ?

Everything's fine today, that is our illusion.

Men must have somewhat altered the course of nature; for they were not born wolves, yet they have become wolves. God did not give them twenty-four-pounders or bayonets, yet they have made themselves bayonets and guns to destroy each other. In the same category I place not only bankruptcies, but the law which carries off the bankrupts’ effects, so as to defraud their creditors.