数学不是关于数字、方程、计算或算法：它是关于理解的。

Sustainability must be profitable, or it won't be sustainable at all.

"Reading is an act of freedom."

释义：有了过错却不知道的人是被蒙蔽，迷失了方向还不返回的人是迷惑。这是对自知之明与迷途知返重要性的阐述。

We need to reshape our own perception of how we view ourselves. We have to step up as women and take the lead.