Painting is poetry which is seen and not heard, and poetry is a painting which is heard but not seen. These two arts, you may call them both either poetry or painting, have here interchanged the senses by which they penetrate to the intellect.

— Leonardo da Vinci, A Treatise on Painting (1651)

Compiled by Francesco Melzi; first published by Raffaelo du Fresne in 1651.

Topics: creativity