色多多在线观看播放-色多多在线观看高清免费-色多多在线观看视频-色多多在线看-欧美aaaaa性bbbbb小妇-欧美aaaav免费大片

The market is an example of a spontaneous order: a system which is the product of human action but not of human design.

The best way to improve a program is to rewrite it.

"Life is not what one lived, but what one remembers and how one remembers it to tell it."

風險管理的核心在于預防和預警。