数学是一种让我们能够描述无法描述的事物的语言。
The study of black holes has led us to the edge of our understanding, where the known laws of physics break down and new theories must emerge.
Man is free at the moment he wishes to be.
对世界抱有理想化的看法是错误的。这就是麻烦的开始。这就是一切开始瓦解的地方。