"To learn anything other than the stuff you find in books, you need to be able to experiment, to make mistakes, to accept feedback, and to try again. It doesn't matter whether you are learning to ride a bike or starting a new career, the cycle of experiment, feedback, and new experiment is always there. But you won't risk mistakes if you think you will be punished. You have to be sure of forgiveness if it is a genuine mistake. You won't accept criticism or negative feedback either, unless you are sure it comes from someone you respect, someone that you know has your interests at heart."