It's actually the recitation of old Chinese fable, repeated here by Elder Carlos E. Asay quoting George A. Smith:
“A man travelling through the country came to a large city, very rich and splendid; he looked at it and said to his guide, ‘This must be a very righteous people, for I can only see but one little devil in this great city.’
“The guide replied, ‘You do not understand, sir. This city is so perfectly given up to wickedness … that it requires but one devil to keep them all in subjection.’
“Travelling on a little farther, he came to a rugged path and saw an old man trying to get up the hill side, surrounded by seven great, big, coarse-looking devils.
“‘Why,’ says the traveller, ‘this must be a tremendously wicked old man! See how many devils there are around him!’
“‘This,’ replied the guide, ‘is the only righteous man in the country; and there are seven of the biggest devils trying to turn him out of his path, and they all cannot do it.’” (Journal of Discourses, 5:363–64.)