北京的赵汀阳（音译）是一个哲学家，以其几年前所写的一部关于天下的书而闻名遐迩，他表示“天下”这个概念是以古代一位圣君——周公的愿景为基础的。
According to Zhao Tingyang , a Beijing-based philosopher known for his book of a few years ago on tianxia , the concept is based on the vision of an ancient sage-king , the Duke of Zhou .
赵汀阳