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.
最好的儿童书籍是那些尊重孩子智力的书籍。
农业创新不仅仅是技术问题；它关乎改变思维方式和拥抱可持续性。
The only way to learn mathematics is to do mathematics.