神农（旧题）：神农本草经·第157则

初，周、齊所鑄錢凡四等，及民間私錢，名品甚眾，輕重不等。隋主患之，更鑄五銖錢，背、面、好、肉皆有周郭，每一千重四斤二兩。悉禁古錢及私錢。置樣於關；不如樣者，沒官銷毀之。自是錢幣始壹，民間便之。

太傅平晏死，以予虞唐尊為太傅。尊曰：「國虛民貧，咎在奢泰。」乃身短衣小褒，乘牝馬、柴車、藉稿，以瓦器飲食，又以歷遺公卿。出，見男女不異路者，尊自下車，以象刑赭幡污染其衣。莽聞而說之，下詔申敕公卿：「思與厥齊。」封尊為平化侯。

What I'm saying is that however much you learn from exploring ideas in other ways, you'll still learn new things from writing about them. Putting ideas into words doesn't have to mean writing, of course. You can also do…