While in Europe, the Lindberghs started to believe that the United States should not be involved with other countries. Many people disliked them because of that. Lindbergh thought the United States should not be involved in war in Europe. In 1940, Anne wrote a booklet called "The Wave of the Future" in support of her husband. The booklet became one of the most hated writings of the time. Anne also wrote about Hitler, saying that he was "a very great man, like an inspired religious leader—and as such rather fanatical—but not scheming, not selfish, not greedy for power."