'If you don't know your roots, you are nothing,' he says.

"You have to know your roots so you know who you are."

Knowing your roots has long been an American passion.

Most children abandoned on the city streets will never know their parents or their roots.

Not that even he knew its roots.

In contradiction to the very premise of the play, he knew his roots and drew his music from them.

This traditional wheat porridge has its roots in Arabia, known as harees.

Maybe it is better not to know your roots.

To appreciate him it helps to know his musical roots.

He knew her ritual and its roots, but he had never before stood out here with the pilgrims, watched her through their eyes.