"[when asked by his secretary if she should destroy all files that were over ten years old] Yes, but keep copies."

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Real failure comes when we consider ourselves good enough at something to be able to repeat it rather than to develop it. "Success is dangerous," the painter Pablo Picasso said. "One begins to copy oneself, and to copy oneself is more dangerous than to copy others. It leads to sterility."

— Joan D. Chittister