愚蠢的时间由时钟衡量，但智慧的时间：没有时钟可以衡量。
The hours of folly are measured by the clock, but of wisdom: no clock can measure.
The use of a program to prove the 4-color theorem will not change mathematics - it merely demonstrates that the theorem, a challenge for a century, is a finite problem.
最可持续的竞争优势是比竞争对手学得更快的能力。
The past is a shadow, always following, but never catching up.