理解计算的极限与理解其可能性同样重要。
Understanding the limits of computation is as important as understanding its possibilities.
学习数学的唯一方法就是做数学。
The history of philosophy is not, like the history of the sciences, to be considered as a mere chronological record of discoveries and errors. It is the history of the human spirit in its endeavor to understand itself and its relation to the universe.
I just want to be happy and make music.