我为什么要努力学习 Why Should I Study Hard

After I go to school, teachers always tell me to study hard, so that I can be the excellent student. But now I have grown up, I have my own idea. The reason for me to study hard is to return my parents’ love. When they are old, I can make a lot of money and let them have a better life. 
自从我上学起，老师总是告诉我要努力学习，这样才能成为优秀的学生。但现在我已经长大了，我有自己的想法了。我努力学习只是为了回报父母的爱。当他们年纪大了。我可以赚很多钱，让他们过更好的生活。