Systems have sub-systems and sub-systems have sub- systems and so on ad infinitum - which is why we're always starting over.

I don't care if you're black, white, straight, bisexual, gay, lesbian, short, tall, fat, skinny, rich or poor. If you're nice to me, I'll be nice to you. Simple as that.

我不想处于底部四分位数，但也不想处于顶部四分位数。我想处于第二四分位数。

Physics is not just about solving problems, it's about understanding the nature of reality.

城市永不眠，我也是。