The most advanced systems are those that work in harmony with nature.
最先进的系统是与自然和谐共存的系统。
证明是一种让自己和他人相信某事为真的方式。
The best leaders are those who serve others.
【释义】令人快乐的事情有很多种类,不能固执地用同一种标准来讨论。