 Longchen Rabjam sets out the course of the Nyingma theory of the truths and the later philosophers of the school took similar stance without varying much in essence. In Treasure he begins the section on the Madhyamaka theory of the two truths as follows: “The Madhyamaka tradition is the secret and profound teachings of the [Śākya]mūni. Although it constitues five ontological categories, the two truths subsume them” (Longchen, 1983: 204f).