我开始相信，一位伟大的教师就是一位伟大的艺术家，而且这样的教师和其他伟大的艺术家一样稀少。教学甚至可能是最伟大的艺术，因为它的媒介是人类的思想和精神。
I have come to believe that a great teacher is a great artist and that there are as few as there are any other great artists. Teaching might even be the greatest of the arts since the medium is the human mind and spirit.
"The best stories are the ones that stay with you forever."
没有坚强意志品质的人学识智慧也不会通达；不遵守诺言的人行动也不会实现。
The improvement of understanding is for two ends: first, our own increase of knowledge; secondly, to enable us to deliver that knowledge to others.
每一代人都认为自己比前一代人更聪明，比后一代人更明智。
真相很少是纯粹的，也从不简单。