The usefulness of the cup is its emptiness.

Ideas are the beginning of all achievement.

All knowledge leads to self-knowledge.

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.

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

If you want to learn to swim you have to throw yourself in the water.

Success only means doing something sincerely and wholeheartedly. I think life is a process. Through the ages, the end of heroes is the same as ordinary men. They all died and gradually faded away in the memory of man. But when we are still alive, we have to understand ourselves, discover ourselves and express ourselves. In this way, we can progress, but we may not be successful.