-1327 1225?-1274 1260-1327 1401-1464 1770-1831 231 600-1500 approximately810-approximately877 bm5501 doctrinal eckhart(meister) erigena georgwilhelmfriedrich god god(christianity) gotteslehre hegel history historyofdoctrines johannes johannesscotus medieval middleages mysticism mystischeerfahrung neoplatonism nicholas philosophy religiousaspects religiousthought self-consciousness(awareness) theologie theology theologythomas thomas unityandplurality