最好的实验往往源于简单的想法和细致的观察。
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
El arte de la palabra es el arte de la vida.
Mistakes can be corrected by those who pay attention to facts but dogmatism will not be corrected by those who are wedded to a vision.