It is a principle of the art of war that one should simply lay down his life and strike. If one's opponent also does the same, it is a even match. Defeating one's opponent is then a matter of faith and destiny.

Light matters should be dealt with seriously. Serious matters should be dealt with lightly.

As everything in this world is but a sham, Death is the only sincerity.

To desire with one’s very soul every second of every day to accomplish one’s aim.

The basic meaning of etiquette is to be quick at both the beginning and end and tranquil in the middle.

It is better to have some unhappiness while one is still young, for if a person does not experience some bitterness, his disposition will not settle down.

The person who practices an art is an artist, not a samurai, and one should have the intention of being called a samurai.