Shantideva
While I’m working on getting the Bodhisattvacharyavatara Sutra up, this particular aspiration sums it up nicely.
“May I become, at all times, both now and forever: a protector for those without protection; a guide for those who have lost their way; a ship for those with oceans to cross; a bridge for those with rivers to cross; a sanctuary for those in danger; a lamp for those without light; a place of refuge for those who lack shelter; and a servant to all in need.”