当且仅当所有投资者都持有均值-方差有效的投资组合时,市场组合才是有效的。
一个设计良好的系统是能够随着时间的推移而发展,而不需要大量的返工。
教育的目的应该是教我们如何思考,而不是思考什么——更应该是改善我们的思维,使我们能够独立思考,而不是用别人的思想来填充记忆。
The more precise the language, the more mysterious the world becomes.
Light is the essence of architecture. Without light, there is no space.
I had ambition not only to go farther than any man had been before, but as far as it was possible for a man to go.