真相很少纯粹，也绝不简单。

每一个发现都为成千上万的新问题打开了大门。

The self is nothing else than the sum of all the contents of consciousness.

Legal rules are not merely commands backed by threats; they are also rules that confer powers and create obligations.

最伟大的旅程是那些带我们回到自己的旅程。