Every book is a quotation; and every house is a quotation out of all forests, and mines, and stone quarries; and every man is a quotation from all his ancestors.
概率论作为一门数学学科，可以而且应该像几何和代数一样从公理出发进行发展。
“I give my whole water in joy，“ sings the waterfall， '' though little of it is enough for the thirsty。''
La luz más intensa nace de las sombras más profundas.
我不是先知或石器时代的人，只是一个有超人潜力的凡人。