"Being a real ninja
to love people, to understand nature and animals, and to love the universe.
This type of love I speak of must have a kind of balance in it: It is not only give and take, it is also give and return.
The mind of a ninja
It is a state of mind that must be kept in order to live a straight, moral life."

Soke Masaaki Hatsumi

Hatsumi kanji