I owe much to my friends; but, all things considered, it strikes me that I owe even more to my enemies. The real person springs life under a sting even better than under a caress.
Andre GideDo not do what someone else could do as well as you. Do not say, do not write what someone else could say, could write as well as you. Care for nothing in yourself but what you feel exists nowhere else. And, out of yourself create, impatiently or patiently, the most irreplaceable of beings.
Andre Gide