Quality is not a choice; it is a requirement.
The past is always with us, for it feeds the present.
真正的创新发生在你走出舒适区的时候。
我并不是一回到自行车上就赢了。经历了很多起起落落,有好成绩也有坏成绩,但这是一个长期计划。
每一个巨大而深刻的困难本身都包含着它的解决方案。它迫使我们改变思维以找到解决方案。
States are rational actors that seek to maximize their relative power in order to ensure their survival in a competitive international system.