生产力的提高是社会进步的动力。
The improvement of the productive powers of labor, and the greater part of the skill, dexterity, and judgement with which it is anywhere directed or applied, seem to have been the effects of division of labor.
There is one god, greatest among gods and men, in no way similar to mortals either in body or in thought.
情感是心理元素的化合反应。
学习是系统中产生的任何变化，这些变化或多或少会永久性地改变其适应环境的能力。
"The only thing to do with good advice is to pass it on. It is never of any use to oneself."