Test knowledge through experience, be prepared to make mistakes, and be persistent about it.
Leonardo da VinciPainting is poetry that is seen rather than felt, and poetry is painting that is felt rather than seen.
Leonardo da VinciAll objects transmit their image to the eye in pyramids and the nearer to the eye these pyramids are intersected the smaller will the image appear of the objects which cause them.
Leonardo da VinciEverything comes from everything, and everything is made out of everything, and everything returns into everything.
Leonardo da Vinci