George Washington said this quote

In politics as in philosophy, my tenets are few and simple. The leading one of which, and indeed that which embraces most others, is to be honest and just ourselves and to exact it from others, meddling as little as possible in their affairs where our own are not involved. If this maxim was generally adopted, wars would cease and our swords would soon be converted into reap hooks and our harvests be more peaceful, abundant, and happy.