法律与道德的分离是法律体系存在的必要条件。
The separation of law and morals is a necessary condition for the existence of a legal system.
"The essential support and encouragement comes from within, arising out of the mad notion that your society needs to know what only you can tell it."
解释:以芍药相赠,以文无(一种中药)相招,展现了中药在人际交往中的特殊意义。