凡是陽性必刚强，刚强一定光明，光明则容易了解。凡是陰性必柔弱，柔弱一定陰暗，陰暗则难以预测。

The most important thing is to keep improving the models with better physics and more data.

The anarchic nature of the international system forces states to compete for power.

我写关于我生活的歌，而我的生活相当普通。