所以，爱的人啊，入睡吧，我知道爱，我知道我被你所爱。

解释：药物之间有阴阳、子母、兄弟等配对关系，说明药物配伍的原理。

I sent my Soul through the Invisible, Some letter of that After-life to spell: And by and by my Soul return'd to me, And answer'd "I Myself am Heav'n and Hell."

It's not the customer's job to know what they want.