POSTED // Jan 7,2009 - n On Wednesday, Jan. 7, at 7 p.m., Donald Worster’s appearance at Sam Weller’s Bookstore (254 S. Main, 328-2586, SamWellers.com) sheds light on the life and times of John Muir in A Passion for Nature: The Life of John Muir. nWhy should Utahns care about Scottish-born (in 1838) John Muir?nJohn Muir was no stranger to Utah. He swam in the Great Salt Lake, climbed Mount Nebo and wrote abo...