I see that in politics we never heed this common sense.War begets war.Neither side sees the other point of view
And many of us are too cowardly to refrain from attacking someone who  has hurt us,possibly by accident or  lack of thought

We know we sometimes offend people but excuse it by saying we were tired or stressed but if they hurt us we assume it is intentional and deliberate.
And of course,once the revenge hits, there will be another attack.Look at the Middle East today if you can bear to.