The fundamental impulse that sets and keeps the capitalist engine in motion comes from the new consumers' goods, the new methods of production or transportation, the new markets, the new forms of industrial organization that capitalist enterprise creates.

I think the best thing you can do is to be grateful for what you have.

人总是比自己知道的自己更多。他不是一成不变的，而是一个过程。

抽象的力量在于它允许我们忽略与当前任务无关的细节。