We begin with the hypothesis that any subject can be taught effectively in some intellectually honest form to any child at any stage of development.

The most dangerous kind of waste is the waste we do not recognize.

"La verdadera patria del escritor es su lengua."

The most alluring thing a woman can have is confidence.

经济发展理论研究的是经济系统如何产生不断改变它的力量。

我是一个战士，我喜欢挑战。

你送给我桃子，我就回报给你李子。意思是做人要知恩图报，不能忘恩负义。也比喻礼尚往来，相互赠送礼物。