Of the four elements water is the second in weight and the second in respect of mobility. It is never at rest until it unites with the sea.
Leonardo da VinciIf you do not rest on the good foundation of nature, you will labour with little honor and less profit.
Leonardo da VinciThe painter who draws by practise and judgment of the eye without the use of reason is like the mirror which reproduces within itself all the objects which are set opposite to it without knowledge of the same.
Leonardo da VinciAs regards this vice, we read that the peacock is more guilty of it than any other animal. For it is always contemplating the beauty of its tail, which it spreads in the form of a wheel, and by its cries attracts to itself the gaze of the creatures that surround it. And this is the last vice to be conquered.
Leonardo da Vinci