Pervyj tom sočinenij mar Ischaka Ninevijskogo, izvestnyj kak «Kniga o voschoždenii inoka» otnositsja k klassičeskim sočinenijam christianskogo Vostoka konca pozdnej antičnosti (VII v.). Ono posvjačšeno izloženiju psichologičeskich, filosofskich i praktičeskich osnov vostočno-christianskogo asketičeskogo učenija, kotoroe sledovalo za grečeskoj christiansko-platoničeskoj tradiciej. Traktaty byli napisany na sirijskom (aramejskom) jazyke i perevedeny v IX v. na grečeskij. V izdanii vpervye v rossijskoj nauke dan kommentirovannyj perevod na russkij s sirijskogo jazyka s učetom raznočtenij i grečeskoj versii. Publikacii teksta predposlano predislovie napisannoe pri učastii meždunarodnoj gruppy učenych, osvetivšich različnye aspekty izučenija mar Ischaka i ego tvorenij.The book is a Russian translation from the Syriac original of the first six memrē (treatises) from the First Collection by mar Ishaq of Nineveh, known as St Isaac the Syrian. Ishaq’s treatises were translated into Greek and strongly influenced Greek and Slavic Orthodox teaching since the 9th c. Translation is paralleled by the original text from Bedjan’s edition (1909) with minor emendations. The text is prefaced with a study of the biography of Ishaq, Syriac manuscript tradition and of all known translations (Greek, Arabic, Ethiopic, Georgian etc.). A survey of Ishaq’s psychology and mystical teaching and of some problems of understanding Ishaq’s thought are given as well.