经济学最终是为了改善人类福祉。
Economics is ultimately about improving human welfare.
每个人在成为自我之前,都必须打破之前固有的东西。
Where reality (existence) is reasonable, all reasonable (presence) is realistic.
时间是人类为了理解宇宙而创造的概念,但宇宙本身是永恒的。