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。
"The best way to lead is by example."
你在育儿过程中越投入，你的孩子就越能感受到被重视和被爱。
最好的艺术是留在你心里的艺术。