我不是政治家，我只是一个关心的公民。

有时候最难的事和最正确的事是同一件事

I think that's the single best piece of advice: constantly think about how you could be doing things better and questioning yourself.

The past is a shadow that follows us, a ghost that haunts us.

任何圆的面积等于一个直角三角形，其中一条直角边等于半径，另一条等于圆的周长。

心理学必须始终问：这如何帮助有机体生活？

As Will Rogers would have said, "There is no such thing as a free variable."