Peace is a daily, a weekly, a monthly process, gradually changing opinions, slowly eroding old barriers, quietly building new structures.
It’s fine to work on any problem, so long as it generates interesting mathematics along the way, even if you don’t solve it at the end of the day.
I learned not to worry so much about the outcome, but to concentrate on the step I was on and to try to do it as perfectly as I could when I was doing it.