"The Mongols made no technological breakthroughs, founded no new religions, wrote few books, and gave the world no new crops or methods of agriculture. Their
own craftsmen could not weave cloth, cast metal, make pottery, or bake bread.
They manufactured no porcelain or pottery, painted no pictures, and built no
building. Yet, as their army conquered culture after culture, they collected and
passed all these skills from one civilization to the next..."
Using the passage, what conclusion can be drawn about the Mongols?