I am working with a composer to write a song for my middle school choir. We are both really inspired by Ray Bradbury's quote:

"Looking back over a lifetime, you see that love was the answer to everything."

Who would I speak to regarding getting permission to set this quote into a piece of choral music?

Try his agent:

Don Congdon Associates, Inc.
156 Fifth Avenue, Suite 625
New York, NY 10010

Telephone: 212.645.1229, Fax: 212.727.2688