"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."

与在现实世界中实现客观理性行为所需解决的问题规模相比，人类心智制定和解决复杂问题的能力非常有限。

唯一真正的智慧在于知道你一无所知。

生活中唯一的限制是你自己设定的。