Every world problem can be solved by the gospel

"I believe, too, that every world problem may be solved by obedience to the principles of the gospel of Jesus Christ."

- David O. McKay, Gospel Ideals (1953), 5; emphasis in original. As quoted in Ensign, Dec 2014, p. 33
https://www.lds.org/ensign/2014/12/helping-others-find-faith-in-christ?lang=eng