Most people are afraid of change, but if you look at it like it's something that can always count on, then it can be a comfort．It doesn't have many things that you can count on．

Civilization as it is known today could not have evolved, nor can it survive, without an adequate food supply.

The power of music lies in its ability to heal the soul.

The essence of mathematics lies in its freedom.

全球化并不是普遍现象，而是西方文明的产物。

"It's important to write about difficult subjects in a way that children can understand."