我开始相信，一位伟大的教师是一位伟大的艺术家，而且像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，因为媒介是人的思想和精神。
"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."
我不愿意死，但我现在已经到了垂死的境地，我希望为了你而活下去，但恰恰是你在剥夺我的生命。
The more bizarre a thing is, the less mysterious it proves to be.
In scientific work, those who refuse to go beyond fact rarely get as far as fact.