Diplomacy without arms is like a concert without a score

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.

Be more than you seem to be.

The greatest and noblest pleasure which we have in this world is to discover new truths, and the next is to shake off old prejudices.

My people and I have come to an agreement which satisfies us both. They are to do what they please, and I am to do what I please.

Neither antiquity nor any other nation has imagined a more atrocious and blasphemous absurdity than that of eating God. This is how Christians treat the autocrat of the universe.

To your care and recommendation am I indebted for having replaced a half-blind mathematician with a mathematician with both eyes, which will especially please the anatomical members of my Academy.