Mental development is the basis of universal morality

In the past, each area of world had its own values and taboos. As there were no relation between different places, those various values were not annoying. For example, Isfahanin people had their own values and London citizens had their own, but they were not opposite each other. Traditional values were based on religion beliefs.  Since some society became secular, a kind of morality was proposed which was based on rationality and so people tolerate each other. Now that the world becomes as little village and all the people get together by communication, yet we see some control disorders, violence and immoral behaviors some around of the world.  So, we need a universal morality. In my opinion, we can achieve such morality only by developing of humans mind.