Now it makes more sense. You already have a certain kanji foundation. Which I try to get by setting my priorities on kanji.
Concerning Kant the most important for me is “der kategorische Imperativ”. I also have “Kritik der reinen Vernunft” on my bookshelf. But no plans to study it even in German 
If you like you also can have a look at my thread My Kanji Journey of 376 days