as far as the mind and the duty are obliged to employ violence, it is necessary that the instinct shall have force to resist them. The enemy which only is overturned can rise up again, but the enemy reconciled is truly vanquished. In the moral philosophy of Kant the idea of duty is proposed with a harshness enough to ruffle the Graces, and one which could easily tempt a feeble mind to seek for moral perfection in the sombre paths of an ascetic and monastic life. Whatever precautions the great philosopher has been able to take in order to shelter himself against this false interpretation, which must be repugnant more than all else to the serenity of the free mind, he has lent it a strong impulse, it seems to me, in opposing to each other by a harsh contrast the two principles which act upon the human will. Perhaps it was hardly possible, from the point of view in which he was placed, to avoid this mistake; but he has exposed himself seriously to it. Upon the basis of the question there is no longer, after the demonstration he has given, any discussion possible, at least for the heads which think and which are quite _willing to be persuaded_; and I am not at all sure if it would not be better to renounce at once all the attributes of the human being than to be willing to reach on this point, by reason, a different result. But although he began to work without any prejudice when he searched for the truth, and though all is here explained by purely objective reasons, it appears that when he put forward the truth once found he had been guided by a more subjective maxim, which is not difficult, I believe, to be accounted for by the time and circumstances.