The Christian Idea of God: A Philosophical Foundation for Faith

Beyond Good and Evil

Ethics and Christianity

Religion and Creation

Thus Spoke Zarathustra

Sharing in the Divine Nature: A Personalist Metaphysics

Think: A Compelling Introduction to Philosophy

The Priority of Mind

History of Western Philosophy

The Development of Kant's View of Ethics

Philosophical Investigations: Edition 4

God: A Guide for the Perplexed

At The Existentialist Café: Freedom, Being, and Apricot Cocktails

God, Faith and the New Millennium: Christian Belief in an Age of Science

Re-thinking Christianity

The Art of Travel

Pascal's Fire: Scientific Faith and Religious Understanding

How to Live a Good Life: A Guide to Choosing Your Personal Philosophy