Great love is born of great knowledge of the thing that is loved, and if you do not know it, you can love it little or not at all.
Leonardo da VinciEvery part is disposed to unite with the whole, that it may thereby escape from its own incompleteness.
Leonardo da VinciThere is no higher or lower knowledge, but one only, flowing out of experimentation.
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