每个人对自己劳动的产权既是所有其他产权的最初基础,也是最神圣和不可侵犯的。
Understanding the universe requires not just intelligence, but imagination.
破碎的东西有时比完整的东西更有意义。
Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers.