In order to attain to such a Concentration the "dead-level" life of the present must be overcome, and a turn must take place towards a new Metaphysic of Life.
Such is the problem to-day, and no complete answer is to be found in the past systems of Metaphysics. "The possibilities of Life and of Knowledge are in no way exhausted, but it is only through our own courage and actions that the possibilities can become actualities" (Erkennen und Leben, p. 161).
The various systems of Thought need a synthesis which will include them all. It is difficult to-day to obtain a theory of life which does not leave out of account some essential elements. Is there a possibility of discovering such a synthesis? I believe that Eucken's works answer this question. But we wait eagerly for the appearance of his greatest work, and I think that, when it appears, he will more than ever deserve Windelband's designation of him as "the creator of a new Metaphysic."
APPENDIX
LIST OF EUCKEN'S WORKS
1866. "De Aristotelis docendi ratione." Pars I. De particularis. This was
the Doctor's dissertation at Göttingen University.
1868. "Über den Gebrauch der Präpositionem bei Aristoteles."