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

If we over-engineer solutions, we risk losing the simplicity nature intended.

Without models, we would be wandering in the dark when it comes to predicting climate change.

善良一点，因为每个人都在与人生苦战。如果想要真正了解他们，只需要，用心去看.

Cinema is a mirror by which we often see ourselves.

I am tomorrow, or some future day, what I establish today. I am today what I established yesterday or some previous day.

做数学的过程比结果更重要。