The mathematician's patterns, like the painter's or the poet's, must be beautiful; the ideas, like the colors or the words, must fit together in a harmonious way.

宇宙的运动是永恒的。

The six colors， including the white background， represent the colors of all the world's flags ... this is a true international emblem.

父子之间要亲爱，君臣之间要有礼义，夫妇之间要挚爱但还要有内外之别，老少之间有尊卑之序，朋友之间要有诚信之德。

人惟有恐惧的时候方能勇敢。