The free, exploring mind of the individual human is the most valuable thing in the world.
The real tragedy of the poor is that they can afford nothing but self-denial.
一个国家制度的强度不仅在于其正式规则，还在于管理行为的非正式规范以及这些规范被人口内化的程度。
变老的好处之一就是你可以畅所欲言而不必担心后果。
预测未来的最好方式就是创造未来。
The rule, or measuring rod, which the behaviorist puts in front of him always is: Can I describe this bit of behavior I see in terms of "stimulus and response"?
