文章的妙处在于，用一句话就能说尽天下的道理。
The best way to cheer yourself up is to try to cheer somebody else up.
唯一存在的限制是你给自己设定的限制。
解释：美色各不相同，看起来都很美好；动听的乐声各不相同，听起来都很快意。
The moment of creation is the most important thing.
Technology will redefine how we extract and utilize coal resources.