I have no duty to be anyone's Friend and no man in the world has a duty to be mine. No claims, no shadow of necessity. Friendship is unnecessary, like philosophy, like art, like the universe itself (for God did not need to create). It has no survival value; rather it is one of those things which give value to survival.
C. S. LewisIf crime and disease are to be regarded as the same thing, it follows that any state of mind which our masters choose to call 'disease' can be treated as a crime and compulsorily cured.
C. S. Lewis