Widely acknowledged as the principal architect of Scottish common sense philosophy, Thomas Reid is increasingly recognized today as one of the finest philosophers of the eighteenth century. Combining a sophisticated response to the skeptical and idealist views of his day, Reid's thought represents an important alternative to Humean skepticism, Kantian idealism and Cartesian rationalism. This work covers not only his philosophy but his scientific research and extensive historical influence. The contributors include: Alexander Broadie, Paul Wood, Nicholas Wolterstorff, James Van Cleve, John Greco, Lorne Falkenstein, C. A. J. Coady, Rene van Woudenberg, William L. Rowe, Terence Cuneo, Peter Kivy, Dale Tuggy, and Benjamin Redekop.