The samurai ethic is a political science of the heart, designed to control such discouragement and fatigue in order to avoid showing them to others. It was thought more important to look healthy than to be healthy, and more important to seem bold and daring than to be so. This view of morality, since it is physiologically based on the special vanity peculiar to men, is perhaps the supreme male view of morality.

Yukio Mishima on Hagakure: the Samurai ethic and modern Japan (ed. 1977)