市场组合是所有投资者都应持有的唯一风险组合。
A people without children would face a hopeless future; a country without trees would face a future with even less hope.
物理学家必须拥有生动的想象力,但必须受到严格逻辑的约束。
要想成为最好的,你必须能承受最坏的。