"Our enemies are innovative and resourceful, and so are we. They never stop thinking about new ways to harm our country and our people, and neither do we." (Remark by the President at the Signing of H.R. 4613, the Defense Appropriations Act for Fiscal Year 2005)
Source: http://www.whitehouse.gov/news/releases/2004/08/20 040805-3.html
Fourth paragraph from the end.