Der Begriff der Religion im System der Philosophie

A preface to morals

A' bölcseség vigasztalásai

An Outline of the History of Christian Thought Since Kant

Chaucer's Translation of Boethius's "De Consolatione Philosophiae"

Die Religion innerhalb der Grenzen der bloßen Vernunft Text der Ausgabe 1793, mit Beifügung der Abweichungen der Ausgabe 1794

Does civilization need religion?

First Principles

Life and Matter: A Criticism of Professor Haeckel's "Riddle of the Universe"

Ludicrous Aspects Of Christianity A Response To The Challenge Of The Bishop Of Manchester

Meditations on the Actual State of Christianity, and on the Attacks Which Are Now Being Made Upon It.