In 1781, he published his great work, the _Critik der Reinen Vernunft,_ or _Investigation of the Pure Reason_. On February 12, 1804, he died. These are the great epochs of Kant's life. But his was a life remarkable not so much for its incidents, as for the purity and philosophic dignity of its daily tenor; and of this the best impression will be obtained from Wasianski's account of his last years, checked and supported by the collateral testimonies of Jachmann, Rink, Borowski, and other biographers. We see him here struggling with the misery of decaying faculties, and with the pain, depression, and agitation of two different complaints, one affecting his stomach, and the other his head; over all which the benignity and nobility of his mind are seen victoriously eminent to the last. The principal defect of this and all other memoirs of Kant is, that they report too little of his conversation and opinions. And perhaps the reader will be disposed to complain, that some of the notices are too minute and circumstantial, so as to be at one time undignified, and at another unfeeling. As to the first objection, it may be answered, that biographical gossip of this sort, and ungentlemanly scrutiny into a man's private life, though not what a man of honor would choose to write, may be read without blame; and, where a great man is the subject, sometimes with advantage. With respect to the other objection, I know not how to excuse Mr. Wasianski for kneeling at the bed-side of his dying friend, to record, with the accuracy of a short-hand reporter, the last flutter of his pulse and the struggles of expiring nature, except by supposing that the idea of Kant, as a person belonging to all ages, in his mind transcended and extinguished the ordinary restraints of human sensibility, and that, under this impression, he gave _that_ to his sense of a public duty which, it may be hoped, he would willingly have declined on the impulse of his private affections. _The following paper on The Last Days of Kant, is gathered from the German of Wasianski, Jachmann, Borowski, and others._