The old dreams were very good dreams; they didn't work out, but I'm glad I had them.

你不等于那些不了解你的人的评论。

快乐的最好方法是给予。

"There is no such thing as a single version of history; there are only perspectives."

The greatest experiments are those that challenge what we think we know.

反馈是一个强大的概念，在自然系统和技术系统中被广泛使用。