The structure of the international system, not the intentions of individual states, is the primary determinant of state behavior.

With each advancement in ultrafast lasers, we rewrite the textbook on how atoms and molecules behave.

我完全相信，无论发生什么，都会继续荒谬下去。

The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.