It seems prudent to add a little bit more

Accepting that the statements made are rather absolutist they still seem fairly correct.

It is probably important however to follow with this-

The reality of human variances in manner/thought/ and deed means just about no society ever exists in complete peace but it does seem at least from my studies that those which experience the least amount of violent conflict are those which focus on ensuring that to the greatest extent possible the majority of groups which make up their populous at least feel as though they can live as they believe without having to fight governmental processes to do so.