居无思,行无虑,不藏是非美恶,四海之内共利之之谓悦,共给之之为安。
居处和行动都无需不必要的思虑,不私藏分别是非美恶的观念,四海之内共享利益,这才是真的喜悦;人人都得到所需物资的保障,社会就安宁。
好的计量经济学就像好的木工——关键在于为工作使用正确的工具。
People are mostly shaped by their genes and their environment, but within those constraints, they have some freedom to choose their own path.
今天我们种下的每一棵树都是留给后代的遗产。