Yip Man

Yip Man: Kung fu is more than a system of fighting. It's a system of thought. You must outthink your opponent, whatever form he takes... because some of them will be more than just men.
Voice of Young Bruce: What else could it be Si Fu?
Yip Man: We all have inner demons to fight. We call these demons 'fear', and 'hatred', and 'anger'. If you don't conquer them, then a life of a hundred years... is a tragedy. But if you do, a life of a single day can be a triumph.