科学是关于理解我们周围的世界，这种理解可以带来令人难以置信的进步。
"Science is about understanding the world around us, and that understanding can lead to incredible advancements."
The child is not a passive recipient of knowledge but an active participant in the learning process.
量化宽松的问题在于它在实践中有效，但在理论上却行不通。
写一本书就像去一个未知的国度旅行。
"The best children's books are the ones that don't talk down to children."