“We're not just dealing in willingness. Humanity has to qualify to survive. You have to have some confidence. We're all born naked, with no external equipment and no experience. Therefore we're terribly ignorant. We're hungry and thirsty, driven to find food by trial and error. So we're designed to live by trial and error. Don't worry about making mistakes. Study your mistakes; admit them, study them, and be terribly excited about them too. If this isn't true, what is true?”