在数学中，最深刻的思想往往源于最简单的观察。
In mathematics, the most profound ideas often arise from the simplest observations.
You are not the opinion of somebody who doesn't know you.
释义：全心全意的人们常得人爱，而态度冷淡者往往遭人嫌弃。
生活中最高尚和最美丽的事物不是被听到的，也不是被读到的，也不是被看到的，而是如果愿意的话，是被生活的。
Sustainability isn't a trend - it's the future of responsible manufacturing.