"I'm not so naive or simplistic to believe we can eliminate war. We're not going to change human nature anytime soon. It isn't that we aren't rational. We are rational. But reason has limits. There's a quote from T.S. Eliot that I just love: We shall not cease from exploring And at the end of our exploration We will return to where we started And know the place for the first time.Now that's in a sense where I'm beginning to be."
January 1, 1970
https://en.wikiquote.org/wiki/The_Fog_of_War