数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。

梦想是免费的，但奋斗需要付出代价。

写作就是呼吸、生活、超越身体的限制而存在。

No matter how good you get you can always get better, and that's the exciting part.

We are taught to be ashamed of confusion, anger, fear, and sadness, and to me, they are of equal value to happiness, excitement, and inspiration.