Epistemology

Rules for the Direction of the Mind

An Outline of Philosophy

Poetic Diction

Aenigmata

Hegel on Self-Consciousness

The Jumble Book: A Jumble of Good Things

The Wave of Scepticism and the Rock of Truth

M. Cousin's Course of Philosophy

Know the Truth: A Critique on the Hamiltonian Theory of Limitation

Facts of Consciousness

Facts of Consciousness

On the Significance of Science and Art

Of the Conduct of the Understanding

An Essay Towards a New Theory of Vision

The Philosophy of Mystery

Luck, or Cunning, as the Main Means of Organic Modification

Life and Matter: A Criticism of Professor Haeckel's “Riddle of the Universe”

Modern Rationalism

The World Turned Upside Down

On the Nature of Thought