Luoyong Wang from Dragon: The Bruce Lee Story | PopCultureQuotes.com

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.

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By: Luoyong Wang
Characters: Yip Man
From: Dragon: The Bruce Lee Story
Genres: Action | Adventure | Biography | History | Martial Arts

Context:
Luoyong Wang (as Grandmaster Yip Man) lectures a young Bruce Lee on philosophy in martial arts. In this case, the importance of understanding Kung Fu as more than a way to defend yourself.