We have the power to choose our thoughts.
Since we have lived in the race thought for thousands of years, it seems almost impossible to control them. They rush through our minds like stampeding cattle or sheep.
But a single sheep-dog can control the frightened sheep and guide them into the sheep pen. I saw a picture in the news-reels of a shepherd dog the sheep. He had rounded up all but three. These three resisted and resented. They baaed and lifted their front feet in protest, but the dog simply sat down in front and never took his eyes off them. He did not bark or threaten. He just sat and looked his determination. In a little while the sheep tossed their heads and went in the pen.