我们不能忽视煤炭的经济作用,但也不能忽视其环境影响。
We can’t ignore the economic role of coal, but we also can’t ignore its environmental impact.
行为主义者放在自己面前的规则或衡量标准总是:我能否用"刺激和反应"来描述我所看到的这一行为?
The universe speaks in the language of mathematics, and we are its humble interpreters.
国际政治是一项残酷而危险的业务,期望国家按照道德原则行事是愚蠢的。
热爱传统从来没有削弱过一个国家.传统就是生死时刻用来救命的.
To love is to admire with the heart; to admire is to love with the mind.