When I was small, I fell in love with tennis, so I like to watch tennis match so much. Today, the tennis players have extended their career time, before, most of them will retire around 30 years old, because it is old enough for an athlete. But now, we can see many tennis players still continue their career after they are 30 years old, such as Roger Federer and Serena Williams. Both of them are keeping the top situation, they are not young enough, but they still the best ones. The age is not the excuse for people to stop moving on, some may say he can’t do well because he is not young enough, in my opinion, it is bullshit. It is never too late to learn, the horrible thing is people have given up the chance to try. So let’s take action, no more excuse.