Umaswati's Tattvartha Sutra — also called the Tattvarthadhigama Sutra or, popularly, the Moksha Shastra — is the single most important text in Jainism and the only major one both sects accept, though they use slightly different recensions and disagree about the author's sectarian affiliation and even his name. It is written in Sanskrit rather than Prakrit, which was itself a move toward the pan-Indian philosophical mainstream, and consists of roughly 350 terse aphorisms across ten chapters covering the seven tattvas: soul, non-soul, karmic influx, bondage, stoppage, shedding and liberation, plus cosmology, the categories of living beings, and the vows. Its opening sutra — right faith, right knowledge and right conduct together constitute the path to liberation — is the definition of the three jewels that every Jain knows. It is memorised, commented on continuously since at least the fifth century, and used as the standard teaching text at every level. The commentaries — Pujyapada's Sarvarthasiddhi, Akalanka's and Vidyanandi's, and the Svetambara Bhashya — are the main channel of Jain philosophical work.