每一个数学问题都是通向新理解世界的窗口。
Every mathematical problem is a window into a new world of understanding.
儿童文学有塑造思想和改变生活的力量。
I'm a big believer in the idea that you are who you surround yourself with.
应对不自由世界的唯一方法是变得如此绝对自由，以至于你的存在本身就是一种反叛。