One day，a father asked his son to plant one tree inside the house and the other tree outside the house. 1 father asked his son，"Which one do you think will be bigger？"The boy replied，"The plant outside is not safe at all. No one will be there to look 2 it. However，the plant inside the house will be safer. 3 I think it will grow bigger. "
The father said，"Let's wait 4 . We will know the answer after some years. "Then the boy left for study. After four years，he came back. He 5 to his father，"Look，nothing happens to this plant inside the house and it is safe. "
When the boy went outside，he was very surprised 6 a big tree. The boy couldn't believe 7 eyes. He couldn't understand how the plant outside grew much 8 than the plant inside. "It faced every season and many difficulties（困难）!"the father told his son 9 the plant outside was bigger. To become a great person，one must fail many 10 and experience many difficulties. In this way，he is able to become great.
