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:
Any woman who understands the problems of running a home will be nearer to understanding the problems of running a country.
不要害怕冒险和尝试新事物。
The concept of entanglement in quantum mechanics is not just a theoretical curiosity; it has profound implications for our understanding of information and causality.
Poetry is not a luxury, but a necessity.
南怀瑾：世间法不空，与般若有挂碍，等于眼中有沙，认生死轮回为实有；出世间法不空，与般若亦有挂碍，等于肉中有刺，认化城为宝所；故有凡夫生死、二乘涅盘的颠倒梦想。
I know that the appearance of Los Angeles at four o 'clock in the morning every day.
人生就是一场冒险，别怕跌倒。