No small hole can so modify the convergence of rays of light as to prevent, at a long distance, the transmission of the true form of the luminous bod… - Leonardo da Vinci

Seeing that I can find no subject specially useful or pleasing — since the men who have come before me have taken for their own every useful or necessary theme — I must do like one who, being poor, comes last to the fair, and can find no other way of providing himself than by taking all the things already seen by other buyers, and not taken but refused by reason of their lesser value. I, then, will load my humble pack with this despised and rejected merchandise, the refuse of so many buyers; and will go about to distribute it, not indeed in great cities, but in the poorer towns, taking such a price as the wares I offer may be worth.

Envy wounds with false accusations, that is with detraction, a thing which scares virtue.

In time and with water, everything changes