"The Sacred Writings Of ..." provides you with the essential works among the Early Christian writings. The volumes cover the beginning of Christianity until before the promulgation of the Nicene Creed at the First Council of Nicaea. This volume contains his most important polemic against heretics, the "Philosophumena", the original title of which is kata pason aireseon elegchos (A Refutation of All Heresies). The first book had long been known; books IV to X, which had been discovered a short time previously, were published in 1851. But the first chapters of the fourth and the whole of the second and third books are still missing. The first four books treat of the Hellenic philosophers; books V to IX are taken up with the exposition and refutation of Christian heresies, and the last book contains a recapitulation. The work is one of the most important sources for the history of the heresies which disturbed the early Church. In addition this edition offers many fragments and an extensive appendix.