The actor must be able to create a world and then live in it.

What do we call visible light? We call it color. But the colors are only the names we give to the way light behaves when it hits something.

The concept of law is essentially a matter of social fact.

Identity is a fragile thing, easily lost and hard to regain.

The core of Pinduoduo is "group buying," allowing users to participate in shopping through social means.

The world is full of suffering, but it is also full of the overcoming of it.