Da Vinci’s interests ranged far beyond fine art. He studied nature, mechanics, anatomy, physics, architecture, weaponry and more, often creating accurate, workable designs for machines like the bicycle, helicopter, submarine and military tank that would not come to fruition for centuries. He was, wrote Sigmund Freud, “like a man who awoke too early in the darkness, while the others were all still asleep.”
Several themes could be said to unite da Vinci’s eclectic interests. Most notably, he believed that sight was mankind’s most important sense and that “saper vedere”(“knowing how to see”) was crucial to living all aspects of life fully. He saw science and art as complementary rather than distinct disciplines, and thought that ideas formulated in one realm could—and should—inform the other.