经济学特别是宏观经济学中说的投资是耐用资本品如厂房设备的生产，而平常说的“投资”是指购买资产如股票，这和经济学中的投资不同，为了区分，这种投资被称为金融投资。
Economics is the study of how societies use scarce resources to produce valuable goods and services and distribute them among different individuals. If we think about the definitions, we find two key ideas that run through all of economics:
The city is like a great palimpsest, a manuscript that has been written and rewritten over the centuries.
世间的一切，都如同梦幻泡影，如同露水和闪电，应该这样看待。
I’m not a guy that’s going to let my love for the ball down.