数学的本质在于其自由性。
"Maybe you can afford to wait. Maybe for you there’s a tomorrow. Maybe for you there’s one thousand tomorrows, or three thousand, or ten, so much time you can bathe in it, roll around it, let it slide like coins through your fingers. So much time you can waste it. But for some of us there’s only today. And the truth is, you never really know."
Success is not final, failure is not fatal: it is the courage to continue that counts.
The most successful companies are those that listen to their customers and evolve with their needs.
我的每一首歌都有故事，希望你可以听到。
I don't like to talk too much, I prefer to let my racket talk.
真相很少是纯粹的，也从不简单。