Former President George W. Bush talked about his memoirs but made no references to Republican presidential candidate Mitt Romney during a speech at the Global Business Travel Association's annual convention in Boston.

Bush addressed more than 6,500 airline, hotel and other travel industry professionals on Tuesday.

Bush said he doesn't think former presidents should undermine current presidents. He also said he was trying to reclaim his anonymity and doesn't want to be in the press anymore.

The 43rd president referred several times to his 2010 book, "Decision Points," which came out in paperback last fall. He also talked about his struggles with alcohol, growing up in West Texas and the importance of public service.