It is a fact that princes who try to raise other princes with violence, end up destroying themselves. - Frederick II of Prussia

As to your Newton, I confess I do not understand his void and his gravity; I admit he has demonstrated the movement of the heavenly bodies with more exactitude than his forerunners; but you will admit it is an absurdity to maintain the existence of Nothing.

I think it better to keep a profound silence with regard to the Christian fables, which are canonized by their antiquity and the credulity of absurd and insipid people.

I wanted to have a water jet in my garden: Euler calculated the force of the wheels necessary to raise the water to a reservoir, from where it should fall back through channels, finally spurting out in Sans Souci. My mill was carried out geometrically and could not raise a mouthful of water closer than fifty paces from the reservoir. Vanity of vanities! Vanity of geometry!