数学家最好的作品是艺术,一种高度完美的艺术,像想象的最秘密的梦想一样大胆,清晰而透明。
A good book is a conversation between the author and the reader.
"The future belongs to those who can adapt."
No president who performs his duties faithfully and conscientiously can have any leisure.
Enjoy failure and learn from it. You can never learn from success.