President Roosevelt has campaigned for a plan to fight the Great Depression of 1930s, which was the biggest recession in history, causing bankruptcies, corporate failures, rising unemployment rates and inflation. This plan was called the New Deal, and consisted of expanding government spending on social protection, job creation, and reforming the American economic and governmental system.
Franklin Roosevelt was elected and his New Deal plan was well-suited to combat that serious economic crisis.
People believed that the Earth was actually the center of the universe, and he was concerned about publishing his ideas because this was very frowned upon and he would get harshly critcized and most likely punished for this idea.