The emergence of Buddhism, Jainism and other heterodox sects in the 6th century BCE led to the development of new religious philosophies in India beyond the orthodox Brahmanical traditions. Buddhism emphasized concepts like the four noble truths, eightfold path, karma and nirvana. Jainism focused on principles of non-violence, asceticism, and the three jewels of right faith, knowledge and conduct. Other heterodox schools like Ajivikas, Charvaka rejected concepts like God, soul and karma in favor of materialism and determinism.