About Nagarjuna:
N?g?rjuna is widely considered one of the most important Buddhist philosophers after Gautama Buddha. Along with his disciple ?ryadeva, he is considered to be the founder of the Madhyamaka school of Mah?y?na Buddhism. N?g?rjuna is also credited with developing the philosophy of the Prajñ?p?ramit? s?tras and, in some sources, with having revealed these scriptures in the world, having recovered them from the n?gas (snake-people). Furthermore, he is traditionally supposed to have written several treatises on rasayana as well as serving a term as the head of N?land?.