Look Straight Ahead at the Plank.

 
WHEN I was a young man I was asked to make one in a party engaged on a kind of work I had never done before—namely, unloading a barge with wheel-barrows up a plank on to the shore, and running the barrow along the shore for some distance. I started, and very soon found the barrow and its load overboard. Again and again I tried, frequently getting the wheel off the plank, and only saving the barrow from falling into the water by getting its frame on the plank, where I had to hold it till someone helped me on again.
An “old hand” who had watched me, at last came to me, and said, “Here, I’ll put you right. The reason you get off is that you are continually watching—first your feet, and then the wheel. Now never mind the wheel, nor your feet either, but look straight ahead at the plank.”
I did as he told me, and very soon I could run a barrow with any man.