We have no constitutional authority to police the world or involve ourselves in nation building, in making the world safe for our style of democracy. Our founders advised against it and the early presidents followed that advice. If we believe strongly in our ideals, the best way to spread them is to set a good example so that others will voluntarily emulate us. Force will not work. Besides, we do not have the money.

Speech in the U.S. House of Representatives (September 16, 2003).