Quote by Leonardo Da Vinci: "I have discovered that a screw-shaped device such as this, i..."

I have discovered that a screw-shaped device such as this, if it is well made from starched linen, will rise in the air if turned quickly.

More by Leonardo Da Vinci

“Practice should always be based upon a sound knowledge of theory.”

“Truth is so excellent, that if it praises but small things they become noble.”

“He who cannot establish dominion over himself will have no dominion over others.”

“The inventor tries to meet the demand of a crazy civilization.”

“I'm one of those people that think Thomas Edison and the light bulb changed the world more than Karl Marx ever did.”

“Very learned women are to be found, in the same manner as female warriors; but they are seldom or ever inventors.”

“Understanding science and pushing the boundaries of science is what makes me immensely satisfied.”

“Physics is really figuring out how to discover new things that are counterintuitive, like quantum mechanics. It's really counterintuitive.”

“I never thought that others would take my theories so much more seriously than I did.”