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:
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。
我认为最重要的是不要害怕失败。
The best businesses don't just sell products; they solve problems.
过去是一个陌生的国度；他们在那里做事的方式不同。
"Books are the windows to other perspectives."