You must throw away your bad habits to get good.

You must be on your toes constantly, yet be relaxed.

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.

Always be able to kill your students

When weak or injured always continue training as you should always be able to adapt in any condition.

Your life is on the line, practice well.

Focus on the future for 50%, on the present for 40%, and on the past for 10%