经济学家必须贪婪地收集事实；但事实本身并不能说明什么。

The best management is a true science, resting upon clearly defined laws, rules, and principles.

The act of painting is an act of alchemy.

The greatest happiness which can happen to any country is the taking of the supreme power out of the hands of the governing few and putting it into the hands of the governed many.

For me they normally happen, these career crises, often, actually, on a Sunday evening, just as the sun is starting to set, and the gap between my hopes for myself and the reality of my life starts to diverge so painfully that I normally end up weeping into a pillow.

Your most unhappy customers are your greatest source of learning.