German idealism
Neo-Kantianism refers broadly to a revived type of philosophy along the lines of that laid down by Immanuel Kant in the 18th century, or more specifically by Schopenhauer's criticism of the Kantian philosophy in his work "The World as Will and Representation" (1818), as well as by other post-Kantian philosophers such as Jakob Friedrich Fries and Johann Friedrich Herbart. It has some more specific reference in later German philosophy.
Martin Knutzen
It was Knutzen who introduced Kant to the scientific literature of the era and especially the works of Isaac Newton, who had such a powerful influence on the development of Kant's own philosophy. Knutzen, however, did not consider Kant to be one of his best students, and favoured (1722–1786) or Johann Friedrich Weitenkampf (1726–1758). Moreover, the name of Kant never appeared in the profuse correspondence between Knutzen and Leonhard Euler, which is evidence of in what little esteem Knutzen held Kant.