Life - Energies, Forces and the Shaping of Life: Vital, Existential

The Enigma of Good and Evil

Life - Phenomenology of Life as the Starting Point of Philosophy

Allegory Revisited

Phenomenology

Human Creation Between Reality and Illusion (Analecta Husserliana)

Logos of Phenomenology and Phenomenology of the Logos, Book 1

Logos of Phenomenology and Phenomenology of the Logos, Book 4

Logos of Phenomenology and Phenomenology of The Logos, Book 3

Phenomenology of Life. Meeting the Challenges of the Present-Day World (Analecta Husserliana)

Imaginatio Creatrix