Professor Rudolf Eucken was born in 1846, at Aurich in Frisia. He attended school in his native town, and then proceeded to study at the Universities of Gottingen and Berlin. In 1874 he was invited to the Professorship of Philosophy at the University of Jena, and here he has laboured for thirty-eight years; during this period he has been listened to and admired by many of the more advanced students of philosophy of all countries and continents.