你必须成为你希望在世界上看到的变化。
You must be the change you wish to see in the world.
地球是一个动态的物体，其表面在不断变化。
Innovation is the key to the future of coal industry, we must embrace new technologies and ideas.
《诗经》三百篇，其内容可以用一句话概括：“思想纯正，没有邪恶。”
The changes in our life must come from the impossibility to live otherwise than according to the demands of our conscience.
文化核心的概念对于理解社会如何组织其生存活动至关重要。