Age isn't how old you are but how old you feel.
年龄不是指你活了多久，而是指你感觉自己有多老。
In times of change, the ability to learn is far more important than the ability to know.
领导力在于有勇气做出艰难的决定，并有谦逊的态度从错误中学习。
Thoughts are the shadows of our feelings always darker， emptier， simpler.
Rest satisfied with doing well， and leave others to talk of you as they please.
对我来说，无畏并非毫无畏惧。它不是完全不害怕。对我来说，无畏是心怀恐惧。无畏是心存疑虑。很多疑虑。
数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。