Kaṇāda and early Vaisheshika scholars focused on the evolution of the universe by law. However, this was not unusual for his times since several major early versions of Hindu philosophies such as Samkhya, Nyaya, Mimamsa along with sub-schools of Yoga and Vedanta, as well as non-Vedic schools such as Jainism and Buddhism, were similarly non-theistic. Kaṇāda was among the sages of India who believed in man's potential to understand existence and reach moksha on his own, without God, a notion of ancient Indians summarized by Nietzsche as the belief that "with piety and knowledge of the Veda, nothing is impossible".