数学证明的优雅常常反映了它所描述的算法的效率。
The elegance of a mathematical proof often mirrors the efficiency of the algorithm it describes.
Every act of communication is a kind of performance.
宇宙充满了神奇的事物，耐心地等待我们的智慧变得更加敏锐。
"The only thing we have to fear is fear itself."