Understanding Reality: Metaphysics in Epistemological Perspective

Issues in the Philosophy of Religion

Dialectics: A Controversy-Oriented Approach to the Theory of Knowledge

Process Metaphysics: An Introduction to Process Philosophy

Essays in Philosophical Synthesis

Humanistic Philosophizing: Sensibility and Speculation in Philosophical Inquiry

Reason and Religion

Free Will: A Philosophical Reappraisal

Infinite Regress: The Theory and History of Varieties of Change

On Explaining Existence

Predicting the Future: An Introduction to the Theory of Forecasting

Productive Evolution: On Reconciling Evolution with Intelligent Design

Being and Value and Other Philosophical Essays

Quantitative Studies in Philosophy

Axiogenesis: An Essay in Metaphysical Optimalism

Metaphilosophy: Philosophy in Philosophical Perspective

Philosophy Examined: Metaphilosophy in Pragmatic Perspective

Philosophy Examined: Metaphilosophy in Pragmatic Perspective

Ethical Idealism