"Poetry is the music of the soul, and, above all, of great and feeling souls."

Communicate everything you possibly can to your partners. The more they know, the more they'll understand. The more they understand, the more they'll care. Once they care, there's no stopping them.

译文：白云斜斜地挂在蔚蓝的天空上，独自登上高处心中一片怅然。遥想家乡像什么呢?在那杂乱山峰的深处，一片翠绿如烟。

预见数学未来的真正方法是研究它的历史和现状。

过去从未死去，它甚至还没有过去。