Risk comes from not knowing what you're doing.
The world is made to end in a beautiful book.
数学不知道种族或地理界限；对于数学来说，文化世界是一个国家。
于是我们继续奋力向前，逆水行舟，被不断地向后推，直至回到往昔岁月。
"I write for kids because I was a kid who needed books."
民主是一种生活方式，而不是一种政治手段。
我一直认为我想成为职业球员，我一直知道要做到这一点我必须做出很多牺牲。
I try to leave every place a little better than I found it.