Language and Reality: The Philosophy of Language and the Principles of Symbolism

The Intelligible World: Metaphysics and Value

Beyond Realism and Idealism

Language and Reality: The Philosophy of Language and the Principles of Symbolism

Valuation: Its Nature and Laws, Being an Introduction to the General Theory of Value

A History of the Principle of Sufficient Reason: Its Metaphysical and Logical Formulations

The History of the Principle of Sufficient Reason:.