On Explaining Existence

Vagaries of Value: Basic Issues in Value Theory

Essays in Philosophical Synthesis

On Rules and Principles

Infinite Regress: The Theory and History of Varieties of Change

Productive Evolution: On Reconciling Evolution with Intelligent Design

Axiogenesis: An Essay in Metaphysical Optimalism

Quantitative Studies in Philosophy

Philosophy Examined: Metaphilosophy in Pragmatic Perspective

Philosophy Examined: Metaphilosophy in Pragmatic Perspective

Finitude: A Study of Cognitive Limits and Limitations

Is Philosophy Dispensable?: And Other Philosophical Essays

Philosophical Episodes

Philosophical Explorations

On the Nature of Philosophy and Other Philosophical Essays

Complexity: A Philosophical Overview

Wishful Thinking And Other Philosophical Reflections

On certainty and other philosophical essays on cognition

Dialectics: A Classical Approach to Inquiry