The ultimate aim of martial arts is not having to use them

It is said the warrior's is the twofold Way of pen and sword, and he should have a taste for both Ways. Even if a man has no natural ability he can be a warrior by sticking assiduously to both divisions of the Way.

You win battles by knowing the enemy's timing, and using a timing which the enemy does not expect.

See to it that you temper yourself with one thousand days of practice, and refine yourself with ten thousand days of training.

Get beyond love and grief: exist for the good of Man.

Pay attention even to life's trifles.

It is difficult to understand the universe if you only study one planet