Epistemology

Isis Unveiled

An Introduction to Metaphysics

The Problems of Philosophy

The Meditations of the Emperor Marcus Aurelius Antoninus

Delphi Complete Works of John Locke (Illustrated) (Delphi Series Eight Book 4)

In Praise of Doubt

The Case of Wagner

Descartes’ Meditations on First Philosophy

Knowledge, Culture and Society

What Does It All Mean?

Visualization

Creation of Reality

Plato’s Apology

Kant Dictionary

An Inquiry into the Human Mind: On the Principles of Common Sense

Philosophy of Pseudoscience

The World as Will and Idea

The Universal Postulate

Science and Citizenship

Discourse on the Method of Rightly Conducting One's Reason and of Seeking Truth in the Sciences