Gra based Musar yeshivas

 The most curious phenomena in religious history; the bright and dark sides are almost invariably found together. Whenever an attempt is made to shed some light on the mystery of the world and of man, the whole nature is pulse of nature is accelerated , and if the animal nature  is the stronger, it becomes all the more uncontrolled.  Every area of value when it deteriorates it deteriorates into its opposite.

I should mention that in Israel I felt a tremendous outpouring of God's light on me, but it did not give me understanding. I do not know what it was all about, but at some point I pushed it away for invalid reasons. In any case, I believe pushing away God's light was a mistake based on a commentary with no name on the first four chapters of the Mishne Torah of the Rambam. In any case, my basic approach based on this experience is that the basic path that had led me to God's light is the best of all paths. And that is the basic learning of Torah in the straight and simple Gra way. For all other paths I believe are paths of deception and evil. No sooner does one come to an authentic yeshiva like the Mir or Ponovitch that someone comes long to seduce him to some path of the Dark Side. In religion light and darkness are sadly mixed.
{I hold from Reb Israel Salanter, but I do not want to knock yeshivas like Brisk that learn Gemara only. After all, my first yeshiva, Shar Yashuv, of Rav Freifeld was a Gra based non Musar yeshiva. But if you would ask me, I would say it is important to have two musar sessions per day. And Rav Shach (Elazar Menachem Min Shach) also says Musar is important as you can see in one of the introductions to the Avi Ezri.}

 That is that a synthetic priori knowledge is known through knowledge that is known not through sense perception nor through thinking]. That applies also to the dinge an sich (things in themselves) through Schopenhauer. That is that the dinge an sich can be known until we get to the Ding An Sich (God). 

One fundamental advantage of Kant is that he provides a good account of light and the electron. As far as light goes the principle of Einstein that its speed is the same to anyone watching it, whether moving or not means that space does not exist except as a way of measurement. The electron also we know depends on the observer in order to decide whether to be a wave or  a particle, so its existence is independent of the observer but its characteristics are not