"The essence of mathematics lies in its freedom."

释义：人的外貌可能相似，但内心和性格却各不相同。

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

"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."

A company's culture is defined by the values its leaders embody.

The best fertilizer is a farmer's knowledge mixed with nature's wisdom.