Life's too short to be sitting around miserable.
人生苦短，不该在痛苦中虚度。
The road to hell is paved with works-in-progress.
The most important thing in mathematics is to ask the right questions.
撒谎的麻烦在于你必须记住一切。
童话故事比真实更真实：不是因为它们告诉我们龙存在，而是因为它们告诉我们龙是可以被打败的。