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.

The best thing about getting older is that you don't lose all the other ages you've been.

暮春三月,穿上春天的衣服,约上五六人,带上六七个童子,在沂水边沐浴,在高坡上吹风,一路唱着歌而回

The end is in the beginning and yet you go on.

形容追求极致的产品态度