Leonardo da Vinci

Weight, force and casual impulse, together with resistance, are the four external powers in which all the visible actions of mortals have their being and their end.
Weight, force and casual impulse, together with resistance, are the four external powers in which all the visible actions of mortals have their being and their end.
Rotate quotes
resistance  impulse  casual  

These are some quotes by Italian author Leonardo da Vinci, who lived between April 15, 1452 and May 2, 1519.