The Coyote Warning

Coyote has a standard warning. He can't put it any better than he already did, so he quotes himself:

Economics is a science. Willful ignorance or emotional rejection of the well-known precepts of this science is at least as bad as a fundamentalist Christian's willful ignorance of evolution science (for which the Left so often criticizes their opposition). In fact, economic ignorance is much worse, since most people can come to perfectly valid conclusions about most public policy issues with a flawed knowledge of the origin of the species but no one can with a flawed understanding of economics.

Pretty solid, though I'd pick a less controversial arena of science for the comparison.