Now it happens that "the zeal of Leibnitz" was exerted in precisely the opposite direction. A considerable section of the "Théodicée" (34-75) is occupied with the illustration and defence of the Freedom of the Will. It was a doctrine on which he laid great stress, and which forms an essential part of his system; [33] in proof of which, let one declaration stand for many: "Je suis d'opinion que notre volonté n'est pas seulement exempte de la contrainte, mais encore de la nécessité." How far he succeeded in establishing that doctrine in accordance with the rest of his system is another question. That he believed it and taught it is a fact of which there can be no more doubt with those who have studied his writings, than there is that he wrote the works ascribed to him. But the freedom of will maintained by Leibnitz was not indeterminism. It was not the indifference of the tongue of the balance between equal weights, or that of the ass between equal bundles of hay. Such an equilibrium he declares impossible. "Cet équilibre en tout sens est impossible." Buridan's imaginary case of the ass is a fiction "qui ne sauroit avoir lieu dans l'univers." [34] [Footnote 33: "Numquam Leibnitio in mentem venisse libertatem velle evertere, in qua defendenda quam maxime fuit occupatus, omnia scripta, precipue autem Theodicæa ejus, clamitant."--KORTHOLT, Vol. IV. p. 12.] [Footnote 34: Leibnitz seems to have been of the same mind with Dante:-- "Intra duo cibi distanti e moventi D' un modo, prima si morria di fame Che liber' uomo l'un recasse a' denti." _Parad_, iv. 1.] The will is always determined by motives, but not necessarily constrained by them. This is his doctrine, emphatically stated and zealously maintained. We doubt if any philosopher, equally profound and equally sincere, will ever find room in his conclusions for a greater measure of moral liberty than the "Théodicée" has conceded to man. "In respect to this matter," says Arthur Schopenhauer, "the great thinkers of all times are agreed and decided, just as surely as the mass of mankind will never see and comprehend the great truth, that the practical operation of liberty is not to be sought in single acts, but in the being and nature of man." [35] [Footnote 35: _Ueber den Willen in der Natur_. FRANKFURT A.M. 1854. p. 22.] Leibnitz's construction of the idea of a possible liberty consistent with the preëstablished order of the universe is substantially that of Schelling in his celebrated essay on this subject. We must not dwell upon it, but hasten to conclude our imperfect sketch.