When my kids were younger, I used this as a inspirational phrase when they were down or discouraged. The point was that turtles may walk kind of slow, but they always keep moving forward; they never turn back and give up the fight. It worked when they were younger… Good thing Google was not so prevalent back then because they would have been able to quickly find out, like I did, that turtles can in fact walk backwards.   …Oh well, it was a good thought at the time!