Mahayana
In Mahayana Buddhism, the bodhisattva vows to work for the relief and liberation (moksha) of all sentient beings as long as samsara persists.
This can be done by venerating all Buddhas and by cultivating supreme moral and spiritual perfection, to be placed in the service of others. In particular, Bodhisattvas promise to practice the "six perfections" of giving, moral discipline, patience, effort, concentration and wisdom in order to fulfill their bodhicitta aim of attaining enlightenment for the sake of all beings.
Read more about this topic: Bodhisattva Vows