His book "Budo Shoshinshu" can be said to be a guide on Bushido for young people from the family of the middle or lower ranking samurai, and it says every samurai should bear in mind that he could die tomorrow.
中下級武士子弟のための武士道入門書ともいえる『武道初心集』は、常に死を心掛けよと説いている。