Shadow is the diminution alike of light and of darkness, and stands between darkness and light.
Leonardo da VinciFeathers shall raise men even as they do birds towards heaven :- That is by letters written with their quills.
Leonardo da VinciDemetrius was wont to say that there was no difference between the words and speech of the unskilled and ignorant and the sounds and rumblings caused by the stomach being full of superfluous wind. This he said, not without reason, for, as he held, it did not in the least matter from what part of them the voice emanated, whether from the lower parts or the mouth, since the one and the other were of equal worth and importance.
Leonardo da VinciA painter should begin every canvas with a wash of black, because all things in nature are dark except where exposed by the light.
Leonardo da Vinci