Bruce Lee: "Your Greatest Enemy Is Within"

I don't know if the speech from the video belongs to Bruce Lee or not, but you should listen it - it's a very good speech. Practicing martial arts for a long time (almost 25 years) I can confirm that the greatest enemy is within. You can train hard and harder each day and you will be able to do a lot of thing when the martial arts are involved, but the greatest enemy remains the one within you - it's one of the first enemies you need to obliterate if you want to win. The rest is just details, and for the moment just watch or at least listen the video and win. Just win against that enemy.