I know too much to be a sceptic and too little to be a dogmatist.

In matters of religion, it is very easy to deceive a man and very hard to undeceive him.

Philosophy can be compared to some powders that are so corrosive that, after they have eaten away the infected flesh of a wound, they then devour the living flesh, rot the bones, and penetrate to the very marrow. Philosophy at first refutes errors. But if it is not stopped at this point, it goes on to attack truths. And when it is left on its own, it goes so far that it no longer knows where it is and can find no stopping place.

One must be stark mad, to believe that mankind can subsist without magistrates.

It has been asserted, that a moral Atheist would be a monster beyond the power of nature to create: I reply, that it is not more strange for an Atheist to live virtuously, than for a Christian to abandon himself to crime! If we believe the last kind of monster, why dispute the existence of the first?

It is thus tolerance that is the source of peace, and intolerance that is the source of disorder and squabbling.

Compulsion in the literal Sense is maliciously misrepresented, by supposing it authorizes Violences committed against the Truth. The Answer to this; by which it is prov'd, that the literal Sense does in reality authorize the stirring up Persecutions against the Cause of Truth, and that an erroneous Conscience has the same Rights as an enlighten'd Conscience.