Author Biography: Paul Tillich (1886-1965), an early critic of Hitler, was barred from teaching in Germany in 1933. He emigrated to the United States, holding teaching positions at Union Theological Seminary, New York (1933-1955); Harvard Divinity School (1955-1962); and the University of Chicago Divinity School (1962-1965). Among his many books are Theology of Culture, Dynamics of Faith, and the three volumes of Systematic Theology.