I believe all suffering is caused by ignorance. People inflict pain on others in the selfish pursuit of their happiness or satisfaction. Yet true happiness comes from a sense of inner peace and contentment, which in turn must be achieved through the cultivation of altruism, of love and compassion and elimination of ignorance, selfishness and greed.
People often expect the other person to respond first in a positive way, instead of taking the initiative to create that possibility. I feel that's wrong; it can act as a barrier that just promotes a feeling of isolation from others. To overcome feelings of isolation and loneliness, your underlying attitude makes a tremendous difference - approaching others with the thought of compassion in your mind is the best way.
Buddhism does not accept a theory of God, or a creator. According to Buddhism, one's own actions are the creator, ultimately. Some people say that, from a certain angle, Buddhism is not a religion but rather a science of mind.
Compassion is not religious business, it is human business, it is not luxury, it is essential for our own peace and mental stability, it is essential for human survival.
The way to develop inner peace through meditation begins with the recognition that the destroyer of inner peace is not some external foe, but is within us. Therefore, the solution is within us too. However, that inner change does not take place immediately in the way that we switch on a light, but takes weeks, months and years.
Physically you are a human being, but mentally you are incomplete. Given that we have this physical human form, we must safeguard our mental capacity for judgment. For that, we cannot take out insurance; the insurance company is within: self-discipline, self-awareness, and a clear realization of the disadvantages of anger and the positive effects of kindness.
It is time to fill the world with strong and powerful deeds. It is common knowledge that no great captain in the world has ever destroyed all of his enemies and lived with a sense of satisfaction. If one enemy is killed, two more will appear. It is important we cultivate love and compassion to all the sentient beings which is the way to bring peace to all.
Whether you believe in God or not does not matter so much, whether you believe in Buddha or not does not matter so much; as a Buddhist, whether you believe in reincarnation or not does not matter so much. You must lead a good life. And a good life does not mean just good food, good clothes, good shelter. These are not sufficient. A good motivation is what is needed: compassion, without dogmatism, without complicated philosophy; just understanding that others are human brothers and sisters and respecting their rights and human dignity.
In our concern for others, we worry less about ourselves. When we worry less about ourselves an experience of our own suffering is less intense. What does this tell us? Firstly, because our every action has a universal dimension, a potential impact on others' happiness, ethics are necessary as a means to ensure that we do not harm others. Secondly, it tells us that genuine happiness consists in those spiritual qualities of love, compassion, patience, tolerance and forgiveness and so on. For it is these which provide both for our happiness and others' happiness.