 Inspired by Aquinas as well as by contemporary anti-reductionism (especially John McDowell), Lamont argues that the ability to gain knowledge from truthful testimony is an intellectual virtue, together with perception and memory (Lamont 2004: Ch. 5). When a hearer H believes a speaker S testifying that p, the very fact that S knows p and sincerely testifies to p gives H knowledge of p, which entails that H has a knowledge-constituting justification for p. This justification is not reducible to H’s evidence for the trustworthiness of S.