In battle, do not think that you have to win. Think rather that you do not have to lose.

You must ignore the bad and adopt the good.

You must be deadly serious in training. When I say that, I do not mean that you should be reasonably diligent or moderately in earnest. I mean that your opponent must always be present in your mind, whether you sit or stand or walk or raise your arms.

Karate-do strives internally to train the mind to develop a clear conscience, enabling one to face the world honestly, while externally developing strength to the point where one may overcome even ferocious wild animals. Mind and technique become one in true karate.

Try to do exactly as you are taught without complaining or quibbling.

In battle, do not think that you have to win. Think rather that you do not have to lose.

Hoping to see karate included in the universal physical education taught in our public schools, I set about revising the kata so as to make them as simple as possible. Times change, the world changes, and obviously the martial arts must change too. The karate that high school students practice today is not the same karate that was practiced even as recently as ten years ago [this book was written in 1956], and it is a long way indeed from the karate I learned when I was a child in Okinawa.