Co-founder and chief executive of Apple; co-founder of NeXT; chief executive of Pixar
I'm convinced that about half of what separates the successful entrepreneurs from the non-successful ones is pure perseverance. It is so hard. You put so much of your life into this thing. There are such rough moments in time that I think most people give up. I don't blame them. Its really tough and it consumes your life.
Daniel Morrow, Smithsonian Institution Oral and Video Histories, for the Computerworld Smithsonian Awards Program, 20 April 1995 source ↗