Existentialism

The Drama of Love and Death: A Study of Human Evolution and Transfiguration

Eureka: A Prose Poem

The Essays of Arthur Schopenhauer: the Wisdom of Life

Life's Basis and Life's Ideal: The Fundamentals of a New Philosophy of Life

Is Life Worth Living

Gleanings from Maeterlinck

Human, All Too Human: A Book for Free Spirits

The War and the Future

Schopenhauer as Educator

Bergson and His Philosophy

Life: Its True Genesis

The Art of Being Bored

Plain Facts

Was Man Created

Where Are We Going

The Philosophy of Mystery

Notes of a Private

What Nietzsche Taught

What Answer

Allegories of Life