If you want to understand a system, try changing it.
如果你想理解一个系统，试着改变它。
We must remember that this is a very small star and probably some of the larger and the more important stars and may be very virtual and happy.
想象是灵魂的眼睛。
The best science is done with both the head and the heart.
我信仰史宾诺莎的上帝，祂以宇宙的秩序与和谐来示现，而不是那个会干涉人类命运和行为的上帝。
最好的技术是无形的，它只是默默地发挥作用。
I have never been able to write a happy play. I can't. I can write a funny play, but I can't write a happy play.
善于治理国家的人们， 一定会十分注重人民的力量。