The only relationship that can make both partners happy is one in which sentimentality has no place and neither partner makes any claim on the life and freedom of the other.

生物普遍存在的生存斗争不是为了原材料——这些对生物来说是充足的——也不是为了能量，能量以热的形式在任何物体中都大量存在，而是为了熵，熵是通过能量从炽热的太阳转移到寒冷的地球而变得可用的。

书是一次你可以不离开椅子就完成的旅程。

Life is too short to be living someone else's dream.

生活近看是悲剧，远看是喜剧。