I was quite happy in my new place, and if there was one thing that I missed, it must not be throught I was discontented ; all who had to do with me were good, and I had a light airy stable and the best of food. What more could I want ? Why, liberty ! For three years and a half of my life I had had all the liberty I could wish for ; but now, week after week, month after month, and no doubt year after year, I must stand up in a stable night and day except when I am wanted, and then I must be just as steady and quiet as any old horse who has worked twenty years. Straps here and straps there, a bit in my mouth, and blinkers over my eyes. Now, I’m not complaining, for I know it must be so. I only mean to say that for a young horse full of strength and spirits who has been used to some large field or plain, where he can fling up his head and toss up his tail and gallop away at full speed, then round and back again with a snort to his companions – I say it is hard never to have a bit more liberty to do as you like.
Anna SEWELL, Black Beauty  in Greatest Horse Stories, Harper Collins Publishers, 1998, p. 26.