我唱歌不是为了得奖，而是因为热爱。

"To me, fearless is not the absence of fear. It's not being completely unafraid. To me, fearless is having fears. Fearless is having doubts. Lots of them. To me, fearless is living in spite of those things that scare you to death."

Mathematics is the most beautiful and most powerful creation of the human spirit.

To talk about painting is not only difficult but perhaps pointless too.