Understand the suffering of worldly existence.
Abandon its causes of ignorance and selfishness.
Practice the path of meditation and compassion.
Awaken from suffering within Great Peace.
Ultimately, the reason why love and compassion bring the greatest happiness is simply that our nature cherishes them above all else. The need for love lies at the very foundation of human existence.
A human being is a part of the whole called by us universe; a part limited in time and space. He experiences himself, his thoughts, and his feelings as something separate from the rest - a kind of optical delusion of consciousness.
Having abandoned the taking of life, refraining from killing, we dwell without violence, with the knife laid down, scrupulous, full of mercy, trembling with compassion for all sentient beings.
There are no limits to God's compassion with Paradises over their one universally felt want: he immediately created other animals besides. God's first blunder: Man didn't find the animals amusing, - he dominated them and didn't even want to be an 'animal.'
Modern Darwinism makes it abundantly clear that many less ruthless traits, some not always admired by robber barons and Fuhrers - altruism, general intelligence, compassion - may be the key to survival.
The wounded surgeon plies the steel
That questions the distempered part;
Beneath the bleeding hands we feel
The sharp compassion of the healer's art
Resolving the enigma of the fever chart.
When the only bond between close friends is attachment, then even a minor issue may cause one's projections to change. As soon as our projections change, the attachment disappears, because that attachment was based solely on projection and expectation. It is possible to have compassion without attachment, and similarly, to have anger without hatred.