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The world will not remember what you say, but what you do.
世界不会记住你说过什么,但会记住你做过什么。
Courage is the most important of all the virtues, because without courage you can't practice any other virtue consistently.
Flow is being completely involved in an activity for its own sake. The ego falls away. Time flies. Every action, movement, and thought follows inevitably from the previous one, like playing jazz. Your whole being is involved, and you're using your skills to the utmost.