The time has come to educate people, to cease all quarrels in the name of religion, culture, countries, different political or economic systems. Fighting is useless. Suicide.
Giving up attachment to the world does not mean that you set yourself apart from it. Generating a desire for others to be happy increases your humanity. As you become less attached to the world, you become more humane. As the very purpose of spiritual practice is to help others, you must remain in society.
We have to think and see how we can fundamentally change our education system so that we can train people to develop warm-heartedness early on in order to create a healthier society. I don't mean we need to change the whole system, just improve it. We need to encourage an understanding that inner peace comes from relying on human values like, love, compassion, tolerance and honesty, and that peace in the world relies on individuals finding inner peace.
Whether one believes in a religion or not, and whether one believes in rebirth or not, there isn't anyone who doesn't appreciate kindness and compassion.