"One of the most difficult things for people who have been successful in sports is adapting to the daily world where you can't get an answer from someone until 5 o'clock tomorrow. There is always an excuse. Living 40 or 50 years like that doesn't get too exciting after a while"

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A good teacher can never be fixed in a routine... each moment requires a sensitive mind that is constantly changing and constantly adapting. A teacher must never impose this student to fit his favourite pattern; a good teacher functions as a pointer, exposing his student's vulnerability and causing him to explore both internally and finally integrating himself with his being. Martial art should not be passed out indiscriminately.

— Bruce Lee