The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.
数学家研究纯数学不是因为它有用；他研究它是因为他喜欢它，他喜欢它是因为它美丽。
做伟大工作的唯一方法是热爱你所做的事。如果你还没有找到它，继续寻找。不要满足。
Man's main task in life is to give birth to himself, to become what he potentially is. The most important product of his effort is his own personality.
数学的语言是普遍的，超越了文化和语言的障碍。
Love is the only thing we take with us when we die. It makes death so easy.