可持续性已不再是选择，而是我们对后代的责任。
爱情并不遵从我们的想象。爱情的神秘在于它的纯洁与纯粹。
The highest virtue is to lead others to the understanding of truth.
The man who wants to lead the orchestra must turn his back on the crowd.
数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。