The quote "I only regret that I have but one life to give for my country" is attributed to Nathan Hale, an American soldier and spy during the American Revolutionary War. Hale volunteered to gather intelligence on British troop movements in New York City but was captured and executed by the British in 1776. His bravery and dedication to the cause of American independence have made him a patriotic symbol. This memorable phrase encapsulates his willingness to sacrifice everything for his country, and it has resonated throughout American history as a testament to courage and patriotism.