Country legend Willie Nelson wasn't always around while his youngest boys, Lukas and Micah, were growing up. But he left a lasting impression by teaching them 5 simple rules to live by.

1. Don't be an asshole.

2. Don't be an asshole.

3. Don't be a goddamn asshole.

4. Stay out of trees.

5. Keep your legs crossed and your nose clean.

Nelson recently opened up about his family life in a Rolling Stone interview filmed on the road with his wife Annie D'Angelo and the boys, who are now musicians in their own right. Check out the family reminiscing on Willie's infamous bus in the click above.