Can someone tell me which peice of Martin Luther King's work this quote came from?

Question

"I have the audacity to believe that people everywhere can have three meals a day for their bodies, education and culture for their minds, and dignity, quality, and freedom for their spirits. I believe that what self-centered men have torn down, other-centered men can build up."
King, Jr., Martin Luther

Answer 1

Scroll about one-third of the way down...
http://mixingmemory.blogspot.com/2005/01/martin-luther-kings-birthday.html

Answer 2

1964, when he accepted the Nobel Peace Prize.

http://nobelprize.org/nobel_prizes/peace/laureates/1964/king-acceptance.html

Thank you, you taught me something today!