Tibetan Buddhism
It includes all of the Buddhist teachings (or "three vehicles"). All traditions of Tibetan Buddhism practice the vows of moral discipline (Pratimoksha) of the hearer's vehicle (Shrāvakayāna); the vows of universal liberation or Bodhisattva vow and philosophy of the great vehicle (Mahāyāna); and the pledges and special methods of the secret mantra vehicle or Vajrayāna.