Beginning with George Washington, presidents have used their farewell address to look back on their experience in office and to offer the public practical advice. In his farewell address, President Dwight D. Eisenhower said that a high level of military spending and the establishment of a large arms industry in peacetime were something "new in the American experience." In the most famous words of his presidency, Eisenhower warned that the country "must guard against the acquisition of unwarranted influence, by the military-industrial complex."