Nikolai Hartmann (1882-1950) is a German philosopher, initially disciple of the school of Marbourg (Hermann Cohen and Paul Natorp), he gives up then the Néo-kantisme for the Phénoménologie of Edmund Husserl to which he will give an ontological accent.

Works:

• Platos Logik of the Centres (" The Platonic logic of the être") (1909)

• Grundzüge einer Metaphysik der Erkenntnis (" Principles of a metaphysics of the connaissance") (1921)
• Philosophy of the deutschen Idealismus (" The philosophy of the idealism allemand"), 2 vol. (1923-1929)
• Das problem of the geistigen Centres (" The problem to be it spirituel") (1933)
• Zur Grundlegung DER Ontology (" For an institution of the ontologie") (1934)
• Möglichkeit und Wirklichkeit (" Possibility and effectivité") (1938)
• Der Aufbau DER realen Welt (" The structure of the world réel") (1940)
• Neue Wege DER Ontology (" New way of the ontologie") (1941)
• Philosophy der Natur (" Philosophy of the nature") (1950)