Editor's note: We were deeply saddened to learn of Dr. Maya Angelou's passing. The following is from Dr. Angelou's January 2011 appearance on Oprah's Master Class. After hearing a 19th-century African-American song, Dr. Maya Angelou has never forgotten one important lyric: God put a rainbow in the clouds. Watch as Dr. Angelou shares how she honors those who employed kindness to help her, and find out how, she says, we can all "be a rainbow in someone else's cloud," no matter who they are. More from this Episode: www.oprah.com/own-master-class/Oprah-Presents-Master-Class-with-Maya-Angelou Subscribe to OWN: bit.ly/18Lz0rV For more on Oprah's Master Class, visit www.oprah.com/MasterClass Find OWN on TV at www.oprah.com/FindOWN Visit our channel for more videos: www.youtube.com/user/OWN www.facebook.com/ownTV twitter.com/OWNTV instagram.com/oprah www.pinterest.com/oprah