The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.

Sometimes we stare so long at a door that is closing that we see too late the one that is open.

解释：药材的使用方法有做成丸剂的，有做成散剂的，有水煮的，有用酒浸泡的，说明了药材使用的多样性。

需要一颗没有烦恼和恐惧的心才能体验真正的幸福。