If you start to think about your physical or moral condition, you usually find that you are sick. — Johann Wolfgang von Goethe. German writer and polymath (1749–1832) Morality
Against criticism a man can neither protest nor defend himself; he must act in spite of it, and then it will gradually yield to him.
Genius thinks it can do whatever it sees others doing, but is sure to repent of every ill-judged outlay.