数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。
People are just as wonderful as sunsets if you let them be. When I look at a sunset, I don't find myself saying, 'Soften the orange a bit on the right hand corner.' I don't try to control a sunset. I watch with awe as it unfolds.
长夜黑暗，处处险恶。
The key to performance is elegance, not battalions of special cases.