Einstein was born in 1879 in Germany. As a child he was slow to talk. But when he was 14 years old, he became clever. He taught himself maths from text books. He studied hard because he wanted to be a physicist (物理学家).

    In 1901, Einstein began teaching. In 1902, he went on with his study at the University of Zurich. Several years later, he put forward (提出)his Theory of Relativity(相对论).

    To most people the Theory of Relativity is hard to explain. But once Einstein explained it very well to a group of young students. He said:" When you sit with a good girl for two hours, you think it is only a minute, But when you sit on a hot fire for a minute, you think it's two hours. That's relativity".

    Later Einstein went to America and never left there. His life ended at the age of 76.

    Kaitlin Riffle's dream of ending poverty (贫困) started when she was visiting her father, who worked for the homeless.

    "I never realized there were people in the world who didn't have a house or food before," said Kaitlin, who is now seventeen. "I knew there was something I had to do about that.

    At age eight, she started raising money to build a playground. "It took me two years," Kaitlin said. "We started small. We wanted to do something to make a difference. "

    In 2014, when Kaitlin was thirteen, she visited Central America, and saw people going hungry and families living in houses made of cardboard. That year, she set up Kids on a Mission, which has helped hundreds of people there.

    "The rooms were smaller than my bedroom, but there would be eight people living in each one," Kaitlin said. "We also got to see the dirty rivers that those people were drinking out of."

    Providing clean drinking water, food and clothes for people living in poverty is now an important task for Kids on a Mission. "This young lady is changing the hearts of people, and also changing the world,"" said the headmaster of Kaitlin's school.

    It was a Christmas night. I was an unlucky nurse who had to work on such a beautiful festival. When I was complaining(抱怨)about it, three people appeared at my desk — a tired woman and two children.

     "Are you all sick?" I asked doubtfully because they seemed all right.

    "Yes," the woman answered weakly and lowered her head.

    But when they started to present their problems, things became unclear. One child had a fever, but his temperature was OK. The other child had an earache, but she could not tell me which ear hurt. It seemed that the mother was pretending(假装)to cough.

    Something was wrong. But I only explained that it might take a while before a doctor could meet them. "Take your time, please," said the mother. I checked their charts — no address. Suddenly I knew, they were homeless while the hospital was warm.

    The family huddled(蜷缩)together under the Christmas tree, smiling and talking with each other sweetly. Quietly, I went back to the nurses' station and told them what happened in the waiting room. It was just like God sending us a gift on Christmas Day. The nurses' station suddenly came back to life. All the nurses went into action for "a Christmas emergency(急诊)".

    We took out our meals for our Christmas "patients". We also put together oranges and apples as presents. We tried to exceed the needs of a family who only wanted a warm place on Christmas night. Later, the little girl kissed me and said, "Thanks for being our angel(天使)."

    Once upon a time there were two boys who lived in a place and worked for the King One boy fell in love with a girl and wanted to give her a present. He suddenly saw a vase filled with the loveliest flowers.

    He decided to take one flower and give it to the girl He did the same thing the next day, and the next, and the next…until, one day, the King noticed a few flowers were left in the vase. The King was so angry that he gathered everyone in the palace and decided to find out the truth.

    When they all stood before the King, the boy thought he should tell the truth.  However the other boy told him not to tell the truth because the King would be angry with him. When the king came near, the boy shook with fear. But he still decided to confess.

    As soon as he told the truth, a smile appeared on the King's face The King said to the boy, "I couldn't have thought of a better use for my flowers".

    Then the King went to the vase and took two of those wonderful flowers, one for the girl, and the other for the Queen.