理解计算的极限与理解数学的极限同样重要。
数学不仅仅是关于数字、方程、计算或算法，而是关于理解。
Failure gave me an inner security that I had never attained by passing examinations. Failure taught me things about myself that I could have learned no other way. I discovered that I had a strong will, and more discipline than I had suspected; I also found out that I had friends whose value was truly above the price of rubies.
【译文】请求人帮助就去求真正的男子汉，救济别人就救济那些急需救济的人。口渴的时候一滴水也如同甘露一般甜美，喝醉酒后再添杯还不如不添。
出自《论语·先进篇第十一》。子路问孔子说：“我大胆的请教您，死是怎么回事呢？”孔子回答说：“还不知道生是怎么一回事，怎么能够知道死亡呢？”
Success is a journey, not a destination, and every step counts.