Quotes from William J Bernstein

In Battuta's obsession with sharia and the Muslim world and in his lack of interest in nearly everything outside it we clearly see the double-edged sword of Islam so visible in today's world: an ecumenical but self-satisfied faith capable of uniting far-flung peoples under one system of belief and one regime of law, but also severely limited in its capacity to examine and borrow from others.

As a general rule, the Chinese seldom ventured west of Sri Lanka, the Indians north of the Red Sea mouth, and the Italians south of Alexandria. It was left to the Greeks, who ranged freely from India to Italy, to carry the greatest share of the traffic.