Complete Lord Acton's line: "Power tends to ___".

The Sultan Qaboos Grand ___, completed in Muscat, Oman, in 2001, welcomes non-Muslim visitors. What kind of building is… Completed in June 1854, the lighthouse on which San Francisco Bay island was the first active one on the U.S. West Coas… Which Hungarian composer wrote "Mikrokosmos", 153 progressive piano pieces completed in the 1930s? Complete Benjamin Franklin's maxim: "Some are weather-wise, some are ___". Kentucky's state motto begins "United we stand." How does it end? Complete Neil Armstrong's July 20, 1969, statement: "That's one small step for man..." Complete Paul Laurence Dunbar's 1899 lines: "a plea, that upward to Heaven he flings — I know why..." Complete Randy VanWarmer's 1979 lament: "You left me just when..."