If you are angry you will share anger, if you are greedy you will share greed, if you are full of lust you will share your lust. We can share only that which we have, we cannot share that which we don't have. This has to be the fundamental thing to be remembered; hence the first step is meditation and the second step is 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.
For the moment a lot of attention is given to economic concerns, and these problems at hand easily eclipse all others. But the remedies proposed for these problems all come out of outmoded ways of thinking... The remedy? Compassion. The logical feeling that we find in ourselves if we search deeply enough that has to be exercised toward all other living creatures.
An important distinction can be made between religion and spirituality. Religion [is] concerned with faith in the claims to salvation of one faith tradition... Spirituality is concerned with qualities of the human spirit, love and compassion, patience, tolerance, forgiveness, contentment, a sense of responsibility, a sense of harmony, that bring happiness both to self.
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.
There is a common perception that compassion is, if not actually an impediment, at least irrelevant to professional life. Personally, I would argue that not only is it relevant, but that when compassion is lacking, our activities are in danger of becoming destructive. This is because when we ignore the question of the impact our actions have on others' well-being, inevitably we end up hurting them.