If science proves some belief of Buddhism wrong, then Buddhism will have to change. In my view, science and Buddhism share a search for the truth and for understanding reality. By learning from science about aspects of reality where its understanding may be more advanced, I believe that Buddhism enriches its own worldview.
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.
For those who may not find happiness to exercise religious faith, it's okay to remain a radical atheist; it's absolutely an individual right, but the important thing is with a compassionate heart - then no problem.
My belief is that the various religious traditions have great potential to increase compassion, the sense of caring for one another, and the spirit of reconciliation. However, I believe that a human being, without religious faith, can be a very good person - sincere, a good heart, having a sense of concern for others - without belief in a particular religious faith.
One has to try to develop one's inner feelings, which can be done simply by training one's mind. This is a priceless human asset and one you don't have to pay income tax on!
Our planet is blessed with vast natural treasures. If we use them wisely, beginning with the elimination of militarism and war, every human being will be able to live a healthy, prosperous existence.
The more adept we become at cultivating an altruistic attitude, the happier we will feel and the more comfortable will be the atmosphere around us. But if our emotions fluctuate wildly and we easily give in to hatred and jealousy, even our friends will avoid us. So even for people with no spiritual beliefs, it is important to have a peaceful mind.
I consider myself to be just one among 7 billion human beings. If I were to think of myself as different from others, or as something special, it would create a barrier between us. What makes us the same is that we all want to lead happy lives and gather friends around us. And friendship is based on trust, honesty and openness.