The Handbook of Magazine Article Writing contains this illustration by Philip Barry Osborne;
“Alex Haley, the author of ROOTS, has a picture in his office, showing a turtle sitting atop a fence. The picture is there to remind him of a lesson he learned long ago: If you see a turtle on a fence post, you know he had some help.
“Says Alex, Any time I start thinking, WOW, isnt this marvelous what Ive done! I look at that picture and remember how this turtlemegot up on that post.“