It is very important to generate a good attitude, a good heart, as much as possible. From this, happiness in both the short term and the long term for both yourself and others will come.
With a basic understanding of all humans as brothers and sisters, we can appreciate the usefulness of different systems and ideologies that can accommodate different individuals and groups with different cultural heritages, having different dispositions and tastes. Each person has the right to choose whatever is most suitable, on the basis of a deep understanding of all others as brothers and sisters.
Peace does not mean no more conflict among humanity. Conflict is bound to happen, so in order to keep peace in spite of conflict, the only realistic method is the spirit of dialogue, respecting the other side and understanding their viewpoint. We need to try and solve problems in a spirit of brotherhood and sisterhood, in a spirit of reconciliation and compromise.
“Right is right, even if everyone is against it; and wrong is wrong, even if everyone is for it”