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:
创新常常来自于重新思考平凡的事物。
"The only thing necessary for the triumph of evil is for good men to do nothing."
The individual is the only reality. The further we move away from the individual toward abstract ideas about Homo sapiens, the more likely we are to fall into error.
People, even more than things, have to be restored, renewed, revived, reclaimed, and redeemed;never throw out anyone.
成功来自于比任何人都更好地理解客户的需求。
最终，我们都只是在试图找到我们在世界上的位置，理解我们周围的混乱。
未来属于那些能够平衡利润与目标的人。
有些时候你必须去挑战伟大。。
"Men and women differ in their desires for short-term mating because the reproductive benefits and costs differed for our ancestors."