Forget your sadness, anger, grudges and hatred. Let them pass like smoke caught in a breeze. You should not deviate from the path of righteousness; you should lead a life worthy of a man. Don't be possessed by greed, luxury, or your ego. You should accept sorrows, sadness and hatred as they are, and consider them a chance for trial given to you by the powers...a blessing given by nature. Have both your mind and your time fully engaged in budo, and have your mind deeply set on bujutsu.
--Momochi Sandayu, Soke, Koto Ryu Koppojutsu