Mbh 3.26.1b

It was for this that all the desires of Virochana’s son, the Asura (Vali), were ever gratified, and his wealth was ever inexhaustible. Having obtained the whole earth through the aid of the Brahmanas, he met with destruction when he began to practise wrong on them! This earth with her wealth never adoreth long as her lord a Kshatriya living without a Brahmana! The earth, however, girt by the sea, boweth unto him who is ruled by a Brahmana and taught his duties by him! Like an elephant in battle without his driver, a Kshatriya destitute of Brahmanas decreaseth in strength! The Brahmana’s sight is without compare, and the Kshatriya’s might also is unparalleled. When these combine, the whole earth itself cheerfully yieldeth to such a combination. As fire becoming mightier with the wind consumeth straw and wood, so kings with Brahmanas consume all foes! An intelligent Kshatriya, in order to gain what he hath not, and increase what he hath, should take counsel of Brahmanas! Therefore, O son of Kunti, for obtaining what thou hast not and increasing what thou hast, and spending what thou hast on proper objects and persons, keep thou with thee a Brahmana of reputation, of a knowledge of the Vedas, of wisdom and experience! O Yudhishthira. Thou hast ever highly regarded the Brahmanas. It is for this that thy fame is great and blazeth in the three worlds!”