夜晚是一座伟大的图书馆，但星星是它的书籍。

Technology has no boundaries, but its application must have direction.

"The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion."

信仰和知识的最终基础是对上帝的信心。

分发奖赏的人不要怀有私恩，行使惩罚权力的人也不要带有私怨。