It always seems impossible until it's done.
在完成之前，一切似乎都是不可能的。
I don't believe in ghosts, but I see them all the time.
一个最重大的错误，是以动机而不是结果来判断政策的得失。
The greatest glory in living lies not in never falling, but in rising every time we fall.
人生在世，贵在勤劳。勤劳就不会贫乏。
"Writing is not a performance, it's a generosity."
We are constantly refining our models to improve performance.
