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.
Jan Mela isn't like most kids .Two years ago , he lost an arm and a leg .But that didn't stop him.
On Saturday ,the 15—year-old boy from Poland（波兰）walked to the North Pole（北极）without any help.
“If I can do it, other people can do great things, too,” Mela said before he went.
Polish newspapers said Mela is the youngest person and the first handicapped（残疾的）person to walk to the North Pole.
How did Mela lose an arm and a leg? He had an electrical（电的）accident .Now, he walks with the help of a 62,000-yuan man-made leg.
After the accident, Mela felt sad for himself. But he didn't lose hope .One day, he met Marek Kaminski, a Polish explorer. Eight years ago, Kaminski went to the North Pole and the South Pole in the same year. Mela wanted to see the North Pole, too. So Mela asked Kaminski if they could go together next time .Kaminski said yes!
It took Mela 21 days to get to the North Pole .The last three or four days were really hard because of bad weather .But Mela kept going.
“I didn't think we would make it,” he said, “Then, things got better.”
Children's education is changing very fast today. In the past, teachers made children s quietly for hours. They made them r all kinds of things. The children had to go on r things again and again until they knew them “by heart”. Today, many teachers wonder if it is p to make children learn at all. They say you can o help them learn. They say you must let children learn and discover things for t. But for some of the children, school is a kind of p they can't escape（逃亡） from. They are there only b their parents make them go. They get out of the classroom as soon as the teachers let them leave. Many of them want to find j but the law（法律） will not let them work until they reach a certain（一定的） age. And so, they have to stay in school. O they do not learn anything at all and hate every moment.
