I have been impressed with the urgency of doing. Knowing is not enough; we must apply. Being willing is not enough; we must do. - Leonardo da Vinci

Knowing is not enough; we must apply. Being willing is not enough; we must do.

Human subtlety will never devise an invention more beautiful, more simple or more direct than does nature because in her inventions nothing is lacking, and nothing is superfluous.

It was the opinion of Leonardo that the temporary nature of music caused its inferiority to painting. Although durability was in itself no absolute test, — else the work of coppersmiths would be the highest art, — yet in any final scale, permanence could not altogether be disregarded. Music perished in the very act of its creation, while painting preserved the beautiful from the hand of time.

Tell me if anything was ever done.