让人们保持被动和顺从的聪明方法是严格限制可接受意见的范围，但在该范围内允许非常活跃的辩论。
The smart way to keep people passive and obedient is to strictly limit the spectrum of acceptable opinion, but allow very lively debate within that spectrum.
我写作是因为我不能尖叫。
The great powers are always searching for opportunities to gain power at the expense of their rivals, which makes them inherently aggressive.