The joy of mathematics comes from the struggle to understand.
数学的快乐来自于为理解而奋斗。
【释义】集市上没有老虎是很明显的事，但是三个人说有老虎，就好像真的有老虎了。
I don’t think I’ve ever been bored in my life. There’s always something to think about.
书籍是灵魂的镜子，反映我们最深的恐惧和欲望。