ሚስትር ኤካርትም በአስራ ሦስተኛው ክፍለ ዘመን በተጻፈ ጽሁፍ ውስጥ "በቅድሚያ ራሱን ማወቅ ያልቻለ ሰው እግዚአብሔርን ሊያውቅ አይችልም" ብለዋል።
Meister Eckhart, a Dominican writer from the thirteenth century, wrote, "No one can know God who does not first know himself."