辅时：适应时势行事。违时：违背时势行事。当时：适时。圣人行事能够适应时势，不能违背时势。聪明人善于谋划，不如利用合适的时机。

The mind is a complex system that can be analyzed at multiple levels.

Literature is my Utopia. Here I am not disfranchised. No barrier of the senses shuts me out from the sweet, gracious discourse of my book friends.

The greatest threat to our planet is the belief that someone else will save it.

发现的兴奋感永远不会消退。