The Mona Lisa, to me, is the greatest emotional painting ever done. The way the smile flickers makes it a work of both art and science, because Leonardo understood optics, and the muscles of the lips, and how light strikes the eye - all of it goes into making the Mona Lisa's smile so mysterious and elusive.
Walter IsaacsonI used to be an angry man myself. I’m a recovering assaholic so I could recognize that in Steve. (quoting Jean-Louis Gassée)
Walter Isaacsoni had no idea what i wanted to do with my life and no idea how college was going to help me figure it out.
Walter IsaacsonLeonardo da Vinci was lucky to be born the same year that Johannes Gutenberg opened his printing shop. As a young person, he could get information about whatever struck his curiosity. The Internet is to our age what Gutenberg's press was to his, so he would have loved being alive today.
Walter Isaacson