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At the same time, these movements were influenced by, and in some respects continued, philosophical thought within the Vedic tradition as reflected e.g. in the Upanishads. These movements included, besides Buddhism, various skeptics (such as Sanjaya Belatthiputta), atomists (such as Pakudha Kaccayana), materialists (such as Ajita Kesakambali), antinomians (such as Purana Kassapa); the most important ones in the 5th century BCE were the Ajivikas, who emphasized the rule of fate, the Lokayata (materialists), the Ajnanas (agnostics) and the Jains, who stressed that the soul must be freed from matter. Many of these new movements shared the same conceptual vocabulary—atman ("Self"), buddha ("awakened one"), dhamma ("rule" or "law"), karma ("action"), nirvana ("extinguishing"), samsara ("eternal recurrence") and yoga ("spiritual practice").[note 24] The shramanas rejected the Veda, and the authority of the brahmans, who claimed they possessed revealed truths not knowable by any ordinary human means. Moreover, they declared that the entire Brahmanical system was fraudulent: a conspiracy of the brahmans to enrich themselves by charging exorbitant fees to perform bogus rites and give useless advice.

What movement focused on the idea that the sould must be freed from matter?
Jains