"There is nothing in all nature without its reason," he wrote. "If you know the reason, you do not need the experience." - Leonardo da Vinci

The motions of men must be such as suggest their dignity or their baseness.

The body of the atmosphere is full of infinite radiating pyramids produced by the objects existing in it. These intersect and cross each other with independent convergence without interfering with each other and pass through all the surrounding atmosphere; and are of equal force and value — all being equal to each, each to all. And by means of these, images of the body are transmitted everywhere and on all sides, and each receives in itself every minutest portion of the object that produces it.

Colui che più possiede, è colui che più ha paura di perdere.