技术不仅仅是一种工具，它可以成为一个伟大的均衡器。

The value of a commodity, or the quantity of any other commodity for which it will exchange, depends on the relative quantity of labor which is necessary for its production, and not on the greater or less compensation which is paid for that labor.

世界变化很快，但人心变化很慢。

沉默可能是最有说服力的回答。

道德的营养不良和精神的中毒对人的心灵的危害，正如身体的营养不良对于身体健康的危害一样。

我认为对古代好的东西要阐述奖惩，对现在好的东西要创造，不过是希望好的东西越来越多罢了。 

I believe that the testing of the student's achievements in order to see if he meets some criterion held by the teacher, is directly contrary to the implications of therapy for significant learning.