The spread of liberal democracy and the integration of the world economy have created a situation in which the only legitimate form of government is one that is based on popular sovereignty and respects basic human rights.

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"?

可持续性不仅仅是一个流行词；它是我们对后代的责任。

唯一真正的发现之旅不在于寻找新的风景，而在于拥有新的眼光。

I am heartily rejoiced that my term is so near its close. I will soon cease to be a servant and will become a sovereign.

求学的人必须先立下志向。志向确立后，学问就可以按部就班地下功夫。

Words have the power to heal, to destroy, and to create.