—— 请按键盘 空白键 开始游戏 ——

数学是一项协作的努力。没有人可以单独完成。
Mathematics is a collaborative endeavor. No one does it alone.
没有对生活绝望,就不会爱生活。
If you're not embarrassed by the first version of your product, you've launched too late.
"The only real failure in life is not to be true to the best one knows."
The problem with people who have no vices is that generally you can be pretty sure they’re going to have some pretty annoying virtues.