数学不是关于数字、方程、计算或算法：它是关于理解的。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
释义：不需要让自己过于饱食，把每时每刻都用来做有益的事情，不放弃任何一寸时间，这样才能够充分利用时间，有所成就。
What I want to talk to you about today is the difference between gifts and choices. Cleverness is a gift， kindness is a choice. Gifts are easy -- they're given after all. Choices can be hard. You can seduce yourself with your gifts if you're not careful， and if you do， it'll probably be to the detriment of your choices.
医学的进步不仅仅是技术问题，更是人性的体现。