1. “And if, for example, Antiabortionism required the perverting of natural reason and normal sensibilities by a system of superstitions, then the liberal could discredit it—but it doesn’t, so he can’t.”—Roger Wertheimer, Philosophy and Public Affairs 11.1.2 Singular Inferences

2. Wertheimer, suggests Anderson in his Afterword, "is an ironic caricature of Wittgenstein: an envious, weak artist who is destroyed by Gould's superior talent; a sadist who keeps his sister locked up in a quasi-incestuous relationship; and finally a philosophical failure who burns all his notes before committing a spiteful, embarrassing suicide."