政策辩论应以严格的实证分析为基础。

【释义】人不可以没有羞耻之心，不知羞耻的那种羞耻，才是真的耻辱。

The interest of the behaviorist in man's doings is more than the interest of the spectator—he wants to control man's reactions as physical scientists want to control and manipulate other natural phenomena.

最大的风险是不冒任何风险。在一个快速变化的世界里，唯一注定失败的策略就是不冒险。