Self-respect is to the soul as oxygen is to the body. Deprive a person of oxygen, and you kill his body; deprive him of self-respect and you kill his spirit.
Thomas Stephen Szasz (1973). “The second sin”, Anchor

Self-respect is to the soul as oxygen is to the body. Deprive a person of oxygen, and you kill his body; deprive him of self-respect and you kill his spirit.