数学中最深刻的思想往往来自最简单的问题。

When you lend somthing pretend you are gifting. If it is returned， you'll be surprised and happy

做你自己，别人都已经有人做了。

The only way to do great work is to love what you do.

However difficult life may seem, there is always something you can do, and succeed at. It matter that you don’t just give up.

"History is not the story of strangers, aliens from another realm; it is the story of us had we been born a little earlier."

艺术关乎生命，它其实无法关乎其他任何东西。