In the second volume of his two-volume collection of essays from the 1980s to 2018, renowned Catholic theologian David Tracy gathers profiles of significant theologians, philosophers, and religious thinkers. These essays, he suggests, can be thought of in terms of Walt Whitman's "filaments," which are thrown out from the speaking self to others--ancient, medieval, modern, and contemporary--in order to be caught elsewhere. Filaments arranges...