BROOKVILLE, N.Y., May 14 — Backing away from her assertion that the current generation is lazy, Senator Hillary Rodham Clinton said on Sunday that she simply wanted to "set the bar high" when she told an audience last week that young people today "think work is a four-letter word." Mrs. Clinton said her daughter, Chelsea, called to complain after learning about her remarks at a gathering of the United States Chamber of Commerce in Washington on Thursday. In that speech, Mrs. Clinton criticized young people for having a sense of entitlement after growing up in a "culture that has a...