The concept of a black hole firewall challenges our understanding of quantum mechanics and general relativity.

物理学上的镜面反射理论，也同样适用于人情世故。爱敬别人的人，同样也会得到别人的爱敬；厌恶别人的人，同样也会遭到别人的厌恶。

Don't you ever let a soul in the world tell you that you can't be exactly who you are.

译文：有才能而没有权势，即使是贤人也不能制服不肖之徒。所以把一尺长的木材树立在高山之上，就能俯瞰万丈深渊，这并不是木材长，而是因为它所处的位置高。

The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.