It is impossible to imitate Voltaire without being Voltaire.

Be more than you seem to be.

Great advantage is drawn from knowledge of your adversary, and when you know the measure of his intelligence and character, you can use it to play on his weakness.

In trying to defend everything he defended nothing.

Christianity - An old metaphysical romance, filled with marvels, contradictions, and absurdity, born in the ardent imagination of Orientals, has spread into our Europe. Enthusiasts have purveyed it, careerists have pretended to accept it, imbeciles have believed it.

I have no fault to find with those who teach geometry. That science is the only one which has not produced sects; it is founded on analysis and on synthesis and on the calculus; it does not occupy itself with the probable truth; moreover it has the same method in every country.

Diplomacy without military might is like music without instruments.