拿一个物体。对它做点什么。再对它做点别的。

知识是解开宇宙奥秘的钥匙。

I always try to push myself to do better.

I'm the reason your watch won't tock.

"I think the best way to encourage children to read is to give them books that they can't put down."

在信息不对称的情况下，市场并不高效。