True happiness comes from within, not from external achievements or possessions.

The great advantage of telling the truth is that you don't have to remember what you said.

The most dangerous phrase in the language is, 'We've always done it this way.'

"I want to write books that make children think and feel."

技术最大的敌人是惯性。

"Life is a tragedy when seen in close-up, but a comedy in long-shot."

If knowledge can create problems, it is not through ignorance that we can solve them.

译文：富庶之地的百姓，善于经商，抓住时机谋利，财富积累到巨万。