The atoms are the cause of the world. The atoms of the same class and similar quality combine to produce the several gross elements. Nature is the final cause since mind and self consciousness are placed within the scheme of nature they are included in the materialistic system. Only perceptual evidence is authority. There is no other world.
Death is the end of all.
First to evolve Global Ethics. Took education to women and untouchables. First to fight for human rights. Your own intelligent judgement should be supreme. Founder of Modern Rationalism in India.