If you always put limit on everything you do, physical or anything else. It will spread into your work and into your life. There are no limits. There are only plateaus, and you must not stay there, you must go beyond them.

As long as I can remember I feel I have had this great creative and spiritual force within me that is greater than faith, greater than ambition, greater than confidence, greater than determination, greater than vision. It is all these combined. My brain becomes magnetized with this dominating force which I hold in my hand.

Concentration is the root of all the higher abilities in man.

To spend time is to pass it in a specified manner. To waste time is to expend it thoughtlessly or carelessly. We all have time to either spend or waste and it is our decision what to do with it. But once passed, it is gone forever.

The more aware you become, the more you shed from day to day what you have learned so that your mind is always fresh and uncontaminated by previous conditioning.

A powerful athlete is not a strong athlete, but one who can exert his strength quickly. Since power equals force times speed, if the athlete learns to make faster movements he increases his power, even though the contractile pulling strength of his muscles remains unchanged. Thus, a smaller man who can swing faster may hit as hard or as far as the heavier man who swings slowly.

Self-knowledge is the basis of jeet kune do because it is effective not only for the individual's martial art but also for his life as a human being.