我想写一个愤怒的女人，她有权利愤怒，而且不会为此道歉。
Quality is not an expense; it’s an investment in your brand’s future.
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
信仰是灵魂的眼睛。
"Fill your paper with the breathings of your heart."
The definition of a good mathematical problem is the mathematics it generates rather than the problem itself.
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.