misuse of a philosophy. Proper use of philosophy is to use Reason to evaluate one's beliefs

If every misuse of a philosophy can be attributed to that philosophy is doubtful. But there is a point to it when the empirical evidence is overwhelming. For Communism, Hegel was used by Marx to provide the intellectual backbone of communist economic theory, but if that misuse can be attributed to Hegel is doubtful. I rather would like to see that Kant saw an important limitation of reason. It cannot go into the dinge an sich. Things in themselves. That idea flows from John Locke who saw a difference between primary characteristics of things that belong to the things in themselves and secondary characteristics that in part come from the observer. Kant held that all characteristics in part come from the observer. Even essential things like color still need to be observed. Thus, if you disregard all secondary and primary characteristics, what is left?-The thing in itself. Rav Nahman also noticed the limit of even pure reason. However, Hegel did notice that reason progress. It is not stuck in what it used to know, but can even progress to what is not yet known. But that does not mean that there is always some limit. Just that the limit itself in not steady. It can go forwards or backwards. [My opinion is that philosophy would benefit with a return to Kant, Fries, Hegel, Leonard Nelson, Kelley Ross ; and ignore all subsequent twentieth century pseudo philosophies.] There is an implied philosophy in Musar. In particular, the Chovot Levavot, however there is value in understanding metaphysics and physics in themselves as was the opinion of the Rambam. The Gra held slightly differently, and held that one need to learn the Organum of Aristotle (known by the name of the seven wisdoms). It is odd that this opinion of the Gra and Rambam are ignored. Proper use of philosophy is to use Reason to evaluate one's beliefs. To be clear, I prefer the distilled approach of Kelley Ross who combines Kant with Leonard Nelson and Schopenhauer. But, I still see great value in Hegel and a more modern great thinker, Michael Huemer of the Intuitionist approach. still I think the Kelley Ross approach is the best.{friesian.com.} Reichenbach had more sense than the Friesian school when it came to Relativity, so to be able to create a consistent system, the Friesian school did not have much to work with until Kelley Ross who managed to put together the various strands of thought into a consistent system. [However he is ignored in Germany, which is sad. For that approach needs modification.] Rav Nachman of Breslov dismissed learning philosophy completely, and there is a good point to that as we can see nowadays how crazy it can get. But still, I see great values in a few of them, e.g. the minor dialogoes of Plato, Aristotle, Kant, Fries, Hegel,Leonard Nelson, Kelley Ross.