Scientific Testimony concerns the roles of scientific testimony in science and society. The book develops a positive alternative to a tradition famously expressed by the slogan of the Royal Society Nullius in verba ("Take nobody's word for it"). This book argues that intra-scientific testimony--i.e., testimony between collaborating scientists--is not in conflict with the spirit of science or an add-on to scientific practice. On the contrary, intra-scientific testimony is ...

On Folk Epistemology explores how we ascribe knowledge to ourselves and others. Empirical evidence suggests that we do so early and often in thought as well as in talk. Since knowledge ascriptions are central to how we navigate social life, it is important to understand our basis for making them. A central claim of the book is that factors that have nothing to do with knowledge may lead to systematic mistakes in everyday ascriptions of knowledge. These mistakes are explained by an...