Man is an animal that makes bargains: no other animal does this—no dog exchanges bones with another.
人是会讨价还价的动物：没有其他动物会这样做——没有狗会与另一只狗交换骨头。
The boundaries which divide Life from Death are at best shadowy and vague. Who shall say where the one ends, and where the other begins?
The human mind is a complex system, and understanding it requires a multidisciplinary approach.