Self Defence.—If self defence is in general held a valid justification, then nearly every manifestation of so called immoral egoism must be justified, too. Pain is inflicted, robbery or killing done in order to maintain life or to protect oneself and ward off harm. A man lies when cunning and delusion are valid means of self preservation. To injure intentionally when our safety and our existence are involved, or the continuance of our well being, is conceded to be moral. The state itself injures from this motive when it hangs criminals.