For a practitioner of love and compassion, an enemy is one of the most important teachers. Without an enemy you cannot practice tolerance, and without tolerance you cannot build a sound basis of compassion.
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.
Unfortunately, love and compassion have been omitted from too many spheres of social interaction for too long. Usually confined to family and home, their practice in public life is considered impractical, even naive. This is tragic.
Be guided, only by the healer of the sick, the raiser of the dead, the friend of all who were afflicted and forlorn, the patient Master who shed tears of compassion for our infirmities. We cannot but be right if we put all the rest away, and do everything in remembrance of Him. There is no vengeance and no infliction of suffering in His life, I am sure. There can be no confusion in following Him, and seeking for no other footsteps, I am certain!
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.
Can you imagine if you really let it in that you are not a problem to be solved in any way? Imagine you knew that anything that would tell you otherwise is just a movement of thought in the mind that says "Whatever is, isn't the way it is supposed to be." So the biggest act of compassion starts within. And when the self is no longer seen as a problem, this is called "the peace that passes all understanding."
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.'
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.
If you resort to violent methods because the other side has destroyed your monastery, for example, you then have lost not only your monastery, but also your special Buddhist practices of detachment, love, and compassion.