"The best stories are those that leave room for the reader’s imagination."

数学中最令人兴奋的时刻是当你发现一些隐藏在显而易见之处的东西。

"The best children's books are the ones that make children think."

The responsibility of agricultural scientists is to make the land produce more grain and let farmers harvest more.

写作有点像拉屎。如果太费力，那就有问题了。

引力解释了行星的运动，但它不能解释谁让行星运动。