Change yourself and the world around will change

The story of the Great Tunnel (Maha-Ummagga-Jataka)

"King Brahmadatta of Pañcāla," etc. The Teacher, while dwelling at Jetavana, told this about the perfection of knowledge. One day the Brethren sat in the Hall of Truth and described the Buddha's perfection of knowledge: "Brethren, the omniscient Buddha whose wisdom is vast, ready, swift, sharp, crushing heretical doctrines, after having converted, by the power of his own knowledge, the Brahmins Kūṭadanta and the rest, the ascetics Sabhiya and the rest, the thieves Aṅgulimāla &c., the yakkhas Āḷavaka &c., the gods Sakka and the rest, and the Brahmins Baka &c., made them humble, and ordained a vast multitude as ascetics and established them in the fruition of the paths of sanctification."