最困难的是在当下富足地生活，而不让它被过去或未来玷污。
The march of science and technology does not imply growing intellectual complexity in the lives of most people. It often means the opposite.
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.
没有以自然为基础的法律是无用的。