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 weight of evidence for an extraordinary claim must be proportioned to its strangeness.

"You can't manage what you can't measure."

You can always become better.

剧院是一个你有时间为人们的问题留出时间的地方，而如果这些人来你办公室求职，你会把他们拒之门外。