真正的圣贤，决不是愚腐不化。真正的豪杰也绝不是粗鲁疏略。

"The most thought-provoking thing in our thought-provoking time is that we are still not thinking."

The truth is rarely pure and never simple.

The stopwatch in the laboratory measures the vibration frequency of the human soul.

The walls of a garden should be high enough to keep the world out, but low enough to let the sky in.

"I believe that as much as you take, you have to give back."

I must study politics and war that my sons may have liberty to study mathematics and philosophy.