What need is there to say more? The childish work for their own benefit, The Buddhas work for the benefit of others. Just look at the difference between them.
ShantidevaMay 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.
Shantideva