Of several bodies, all equally large and equally distant, that which is most brightly illuminated will appear to the eye nearest and largest.
Leonardo da VinciExperience, the interpreter between creative nature and the human race, teaches the action of nature among mortals: how under the constraint of necessity she cannot act otherwise than as reason, who steers her helm, teaches her to act.
Leonardo da VinciWeight is caused by one element being situated in another; and it moves by the shortest line towards its centre, not by its own choice, not because the centre draws it to itself, but because the other intervening element cannot withstand it.
Leonardo da Vinci