贫贱时，对富贵漠然置之，他日得志一定不自矜；富贵之时，心中不忘贫贱之日，即便失却富贵心中也必无怪怨。

The world is full of obvious things which nobody by any chance ever observes.

诗人是让世界歌唱的人。

Problems frequently get easier if you turn them around in reverse. In other words, if you want to help India, the question you should ask is not “how can I help India,” it’s “what is doing the worst damage in India? What will automatically do the worst damage and how do I avoid it?”

造纸行业有责任在环境管理方面引领潮流。

数学中最重要的是要有良好的直觉。