A man must constantly exceed his level

Don't fear failure. Not failure, but low aim, is the crime. In great attempts it is glorious even to fail.

The founder of any branch must be more ingenious than the common man. However, if his achievement is not carried on by disciples of the same ingenuity, then things will only become formalized and get stuck in a cul-de-sac; whereby breakthrough and progress will be almost impossible.

A good martial artist does not become tense, but ready.

Know the difference between a catastrophe and an inconvenience. - To realize that it's just an inconvenience, that it is not a catastrophe, but just an unpleasantness, is part of coming into your own, part of waking up.

Preparation for tomorrow is hard work today.

Believe me that in every big thing or achievement there are always obstacles-big or small- and the reaction one shows to such obstacles is what counts, not the obstacle itself.