Yesterday, 09:41 am The world's oldest man has celebrated his 113th birthday - revealing he takes one aspirin a day to stay healthy. Enlarge photo Walter Breuning celebrated his milestone with a party at his home in the Rainbow Retirement Community in Great Falls, Montana. He told those gathered: "Remember that life's length is not measured by its hours and days, but by that which we have done therein. "A useless life is short if it lasts a century. "There are greater and better things in us all, if we would find them out. There will always be in this world - wrongs. No wrong is really successful. "The day will come when light and truth and the just and the good shall be victorious and wrong as evil will be no more forever." The 113-year-old, considered to be the world's oldest man, attributes his long life to eating well and keeping physically and mentally active. He also says he takes one aspirin a day. Mr Breuning is in such good shape that he still strolls the halls of the retirement home, wearing a suit and tie, and walks the ramps to his second-floor apartment. He was born on September 21, 1896, in Melrose, Minnesota. In 1912, he became a railway worker, which led him to Montana in 1918. He stayed in the job until retiring in 1963. Mr Breuning has outlived all of his family. He lost his wife in 1957 after 35 years of marriage - they did not have any children.