Read the text and answer the following questions!

Black Beauty

    Farmer Gray was the kindest master in the world. He was proud of me, and called me Black Beauty. I had a white spot on my forehead and one white foot. He trained me to pull a carriage. Then I learn to wear a saddle and carry a rider on my back.

    One day, Farmer Gray said, "A good horse like you do not live on a farm. So you will be going to live with Squire Gordon and his family." I was very sad to leave the farmer and his home.

    However, when I saw my new masters I knew I would be happy with them. They lived in a big mansion and welcomed me warmly. Mrs. Gordon was pale and ill, but she smiled when she saw me.

    The groom who looked after the stables was John Manly. He loved horses. He introduced me to Merry legs, the children's pony, Ginger, and old mare. She was not a bad horse, but had been ill-treated in the past.

What did Black Beauty learn from Farmer Gray?