The present is the only thing that has no end.
现在是唯一没有尽头的东西。
译文：昨天还看见花开，今天就看见花落。花开花落本是无情的自然规律，别怪夜里风雨太狠——人生也是这样无常。
我知道自己是聪明的，因为我知道自己一无所知。
改变是好事。
I think that plays are there to disturb, not to reassure.
The most hateful thing for a man is to have knowledge of everything but power over nothing.