Learning is the first step in making positive changes within yourself. Other factors are conviction, determination, action & effort. Learning & education help develop conviction about the need to change & increase your commitment. Conviction then develops into determination. Next, strong determination leads to action: a sustained effort to implement the changes. This final factor of effort is critical.
If you have religious faith, very good, you can add on secular ethics, then religious belief, add on it, very good. But even those people who have no interest about religion, okay, it's not religion, but you can train through education.
We can change society, change humanity by changing ourselves as individuals. By cultivating inner values, we can change our own lives and those of our families. This is how we can create a more peaceful world.
Love, compassion and concern for others are real sources of happiness. If you have these in abundance, you will not be disturbed even by the most uncomfortable circumstances. If you nurse hatred, however, you will not be happy even in the lap of luxury. Thus, if we really want happiness, we must widen the sphere of love. This is both religious thinking and basic common sense.
There is no need to mention the great difference between the amount of satisfaction there is in just oneself being happy and the amount of satisfaction there is in an infinite number of people being happy.
There is no self-interest completely unrelated to others' interests. Due to the fundamental interconnectedness which lies at the heart of reality, your interest is also my interest. From this it becomes clear that "my" interest and "your" interest are intimately connected. In a deep sense, they converge.
I believe that the very purpose of our life is to seek happiness. That is clear. Whether one believes in religion or not, whether one believes in this religion or that religion, we all are seeking something better in life. So, I think, the very motion of our life is towards happiness.