|A painting of Herder (1785)|
I have had the good fortune to know a philosopher who was my teacher. In the prime of life he possessed the joyous courage of youth, and this also, as I believe, attended him to extreme old age. His open, thoughtful brow was the seat of untroubled cheerfulness and joy, his conversation was full of ideas and most suggestive. He had at his service jest, witticism, and humorous fancy, and his lectures were at once instructive and most entertaining. With the same spirit in which, he criticized Leibniz, Wolff, Baumgarten, Crusius, and Hume, he investigated the natural laws of Newton, Kepler, and the physicists. In the same way he took up the writings of Rousseau, which were then first appearing, — the Emile and the Heloise, — as well as any new discovery with which he was acquainted in natural science, and estimated their value, always returning to speak of the unbiased knowledge of nature, and the moral worth of man. The history of men, of peoples, and of nature, mathematics, and experience, were the sources from which he enlivened his lectures and conversation. Nothing worth knowing was indifferent to him. No cabal or sect, no prejudice or reverence for a name had the slightest influence with him in opposition to the extension and promotion of truth. He encouraged and gently compelled his hearers to think for themselves; despotism was foreign to his disposition. This man, whom I name with the greatest thankfulness and reverence, is Immanuel Kant; his image stands before me, and is dear to me. (Immanuel Kant: His Life and Doctrine by Friedrich Paulsen; Page 40—41)Herder was Kant's favorite student. The extensive notes that Herder made of Kant’s lectures enjoy a special standing among Kant scholars. But by the 1780s, profound philosophical differences had emerged between Herder and Kant. In 1785, Kant did an unsympathetic review of Herder's book Ideas upon Philosophy and the History of Mankind. Herder, in turn, repudiated Kant’s Critical philosophy which, he asserted, was incapable of explaining the realities of the world. But he continued to admire Kant as a teacher and human being.