Donald Pet, MD, trained in psychiatry at Johns Hopkins where his favorite mentor was Professor Jerome Frank, world authority on the cause of war and peace. His passion is to popularize Einstein’s s...ver maisDonald Pet, MD, trained in psychiatry at Johns Hopkins where his favorite mentor was Professor Jerome Frank, world authority on the cause of war and peace. His passion is to popularize Einstein’s solution for permanent world peace so his seven grandchildren and humanity can experience the opportunities he has enjoyed.ver menos