[Brent] has produced a thoughtful, sometimes moving, and entirely accessible intellectual biography which is also, under the circumstances, indispensable." --The New York Review of Books ... a fine biography."--The New York Times Book Review ... an extraordinary, inspiring portrait of the largely forgotten Peirce, a progenitor of modern thought who devised a realist metaphysics and attempted to achieve direct knowledge of God by applying the logic of science." --Publishers Weekly In this expanded paperback edition of the critically acclaimed biography of a true American original, the philosopher-polymath Charles Sanders Peirce, Joseph Brent refines his interpretation of Peirce's thought and character based on new research, and has added a glossary and a detailed chronology.