It is true that we live in a society in which a great many things need to be changed, but this must not be achieved through violence. Besides, true change is never wrought through violence, which always leads to greater evils than those it claims to cure.
So, how can we bring about change in society? By our way of life.
It is by first transforming themselves that human beings can change the whole world. But for this to happen, they need a Teaching, that is to say, a system and methods.
For this is the crux of the matter: you have to live a new life based on a new philosophy supported and nourished by a new understanding of love. Harmony then begins to take root in people who become beneficial, constructive agents for all of humanity.