"Do your homework! No excuses! It's what you owe yourself."
This is the tough-love message President Obama is delivering to children as the school year starts.
The President went to a school in the Washington D.C. suburbs to tell kids all over the country that their adult lives will be miserable if they do not start learning now.
The President says kids need help to learn, but in the end, whether they succeed or fail, is up to them.
The speech was broadcast live and streamed live on the Web.
Before the President spoke, he heard from many critics who thought he would use the speech for political purposes.