David Heinemeier Hansson

“My whole thing was, if I can put in 5 percent of the effort of somebody getting an A, and I can get a C minus, that’s amazing,” he explains. “It’s certainly good enough, right? [Then] I can take the other 95 percent of the time and invest it in something I really care about.”

“You're better off with a kick-ass half than a half-assed whole.”