Looking for the meaning of life, one man can discover the order of the universe. To discover the truth, to achieve. a higher spiritual state, that is the true meaning of ninja.
The simplest is always the most difficult.
Move with your feet, the hands will follow.
Focus on the future for 50%, on the present for 40%, and on the past for 10%
You must be on your toes constantly, yet be relaxed.
You must throw away your bad habits to get good.