最大的谜团是我们自己创造的谜团。
我们不仅生活在思想的世界中，而且也生活在物质的世界中。
We are stubborn on vision. We are flexible on details.
It seems to me that if you or I must choose between two courses of thought or action, we should remember our dying and try so to live that our death brings no pleasure to the world.
你的能量会吸引你的同类。
唯一好的教学是那种走在发展前面并引导发展的教学。
哲学家不是解决问题的人，而是消解问题的人。
Mathematics is a conversation between the past and the future.