"What another would have done as well as you, do not do it. What another would have said as well as you, do not say it; what another would have written as well, do not write it. Be faithful to that which exists nowhere but in yourself - and thus make yourself indispensable."

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Be faithful and true of word; let thy walk be plain and lowly: thou wilt get on, though in savage land. If thy words be not faithful and true, thy walk plain and lowly, wilt thou get on, though in thine own home? Standing, see these words ranged before thee; driving, see them written upon the yoke. Then thou wilt get on.

— Confucius