Is the mind in the body? What do words mean? What are we supposed to know about space? These and other questions are explored by esteemed author and academic George Stuart Fullerton. The American-born Fullerton (1859-1925) was a philosopher, teacher, and at one time a prisoner of war who hosted the first meeting of the American Psychological Association in 1892. He graduated from the University of Pennsylvania and later Yale Divinity School. In 1904, he headed the philosophy department at Columbia University. During World War I, Fullerton was an exchange professor in Vienna and was imprisoned throughout the war. He returned the to U.S. with his health permanently damaged and committed suicide at age 66.