When a person is in a miserable situation, then, yes, it is difficult to develop genuine compassion toward others. That's why I find it difficult to say to poor people, "Please have compassion toward millionaires." That's not easy.
It is not enough to be compassionate. You must act. There are two aspects to action. One is to overcome the distortions and afflictions of your own mind, that is, in terms of calming and eventually dispelling anger. This is action out of compassion. The other is more social, more public. When something needs to be done in the world to rectify the wrongs, if one is really concerned with benefitting others, one needs to be engaged, involved.
Most governments are pragmatic, most people are logical. There are pockets of extremism in Israel, in the U.S. and in the Muslim world. But we have to fight them with reason, with logic and with compassion.
'Thou shalt not kill' does not apply to murder of one's own kind only, but to all living beings and this commandment was inscribed in the human breast long before it was proclaimed from Sinai.
Nothing shocks our moral feelings so deeply as cruelty does. We can forgive every other crime, but not cruelty. The reason for this is that it is the very opposite of compassion.
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.
The compassion we feel normally is biased and mixed with attachment. Genuine compassion flows towards all living beings, particularly your enemies. If I try to develop compassion towards my enemy, it may not benefit him directly, he may not even be aware of it. But it will immediately benefit me by calming my mind. On the other hand, if I dwell on how awful everything is, I immediately lose my peace of mind.
The Greek people have gone through some very difficult times and there's still a hard road ahead, but despite those hardships, Greece has continued to be a reliable ally, has shown true compassion to fellow human beings in need. It's an example of the Greek character.
Anger cannot be overcome by anger. If someone is angry with you, and you show anger in return, the result is a disaster. On the other hand, if you control your anger and show its opposite - love, compassion, tolerance and patience - not only will you remain peaceful, but the other person's anger will also diminish.
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.
How can one be compassionate if you belong to any religion, follow any guru, believe in something, believe in your scriptures, and so on, attached to a conclusion? When you accept your guru, you have come to a conclusion, or when you strongly believe in god or in a saviour, this or that, can there be compassion? You may do social work, help the poor out of pity, out of sympathy, out of charity, but is all that love and compassion?
Without religion, also there is a way, it could be this way, through education, through scientific findings, then you get conviction. Not necessarily really love other, but for their own interest they are showing love, compassion to other like that.