—— 请按键盘 空白键 开始游戏 ——

The human soul is a labyrinth, full of twists and turns, and we are all trying to find our way out.
在数学中,提出问题的艺术必须比解决问题更有价值。
郦波在讲座中引用马克·吐温的话并加以阐释
The whole of life is an act of letting go, but what hurts the most is not taking a moment to say goodbye.
解释:称赞人不夸大他好的地方,那么听的人心里不痛快;诽谤人不增加他的过错,那么听的人心里不满足。