QuoteFor the Jew and the Moslem, religion is primarily not, as it is for the Christian, a faith formulated in dogmas, but a law, a code of divine origin. Accordingly, the religious science, the sacra doctrina, is not dogmatic theology, theologia revelata, but the science of the law, halaka or fiqh. The science of the law thus understood has much less in common with philosophy than has dogmatic theology. Hence the status of philosophy is, as a matter of principle, much more precarious in the Islamic-Jewish world than it is in the Christian world. No one could become a competent Christian theologian without having studied at least a substantial part of philosophy; philosophy was an integral part of the officially authorized and even required training.Leo Strauss, "How to Begin to Study Medieval Philosophy," The Rebirth of ClassicalPolitical Realism: An Introduction to the Thought of Leo Strauss, Selected and Introduced byThomas L. Pangle (Chicago: University of Chicago Press, 1989), 221.

I wanted to know where the quote 'To know the Logos, one must give blood' or something similar, originated from?I was not given the actual source of the quote but a sort of explanation by a collegue:'In the esoteric tradition 'blood' is the means of initiation in this world of pain we live. In other higher planets, this is not the means of initiation. Attaiment of the tautological cosmic logos leads to salvation from pain and to liberation. The logos should be understood as THAT IN ITSELF, THE UNIVERSAL TAUTON. This can only be achieved through pure intuition or in Greek ENORASIS which means vision of the One. This leads to what Plato named METHEXIS, which roughly means spiritual fusion. Subject and Object merge and duality is transcended'Here we have theology, philosophy and science all mixed up together.I wonder if there is a good book(s) or research paper(s) by Greek academics or people trained in the Classics and Comparative theology explaining or unfolding the etymology of ancient Greek words in relation to philosophy and the mysteries/theology?