The need for joy is a fact of life. Joy, no matter how plentiful, cannot justify imposing on someone the need for joy, just like heroin, no matter how plentifu

The need for joy is a fact of life. Joy, no matter how plentiful, cannot justify imposing on someone the need for joy, just like heroin, no matter how plentiful, cannot justify imposing on someone the need for heroin. Surely everyone agrees with the latter, why not with the former?