The algebraic analysis is the most extensive and the most certain of all the sciences; it is the only one which has a method invariable and infallible.
代数分析是所有科学中最广泛和最确定的；它是唯一具有不变和可靠方法的一门科学。
我首先要消除一些传言，免得误人子弟。
The best way to predict the future is to create it.
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。