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.
All the harm, fear, and suffering in the world are caused by attachment to the self: Why should I hold on to this great demon?
May the pain of every living creature be completely cleared away. May I be the doctor and the medicine and may I be the nurse for all sick beings in the world until everyone is healed.
All the happiness there is in this world Arises from wishing others to be happy. And all the suffering there is in this world Arises from wishing oneself to be happy.
All the joy the world containsHas come through wishing happiness for others.All the misery the world containsHas come through wanting pleasure for oneself.