Nature never deceives us； it is always we who deceive ourselves.

空间是一种物质。

You have to expect things of yourself before you can do them.

基础结构决定论原则认为，社会文化系统的结构受人口、技术和环境相互作用的影响最为强烈。

I don't think about age. I think about spirit. I think about how I feel inside.