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.
Mark Sacks
Mark D. Sacks (29 December 1953 – 17 June 2008) was a British philosopher best known for his work on Kant, Post-Kantian idealism, and the epistemological tradition in European Philosophy. He was one of the few philosophers in Britain who sought to integrate the Analytic philosophy tradition with Continental philosophy.