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.

Theologians are all alike, of whatever religion or country they may be; their aim is always to wield despotic authority over men's consciences; they therefore persecute all of us who have the temerity to tell the truth.

Be more than you seem to be.

Diplomacy without arms is like a concert without a score

God is always with the strongest battalions.

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.

The more I see of men, the better I like my dog.