The greatest enemy of a good plan is the dream of a perfect plan.
追求完美的想法,是一个好计划的最大敌人。
物理学的美丽在于它能够用简单的原理解释复杂的事物。
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.