States are inherently aggressive and expansionist because they exist in an anarchic international system where there is no higher authority to keep them in check.

行义不是为了躲避诋毁、获得荣誉，如果离开是符合道义的，背上狂妄的名声又有什么影响呢？ 

Science is not just about facts, but about understanding the underlying principles that govern those facts.

Small improvements, consistently applied, lead to massive change over time.

The only way to predict the future is to create it.

I can't predict the future, but I can create it.