>> she understood about sacrifice and about paying dues. >> reporter: jazz great and cbs cultural correspondent wynton marsalis worked with angelou in 2003. >> that type of intellectual power with that type of soul and feeling, with the type of fire and the type of gentle gratitude is a rare combination. >> reporter: angelou her poem "on the pulse of mourning" at president bill clinton's inauguration. >> the rock cries out to us clearly, forcefully, come. you may stand up on my back and face your distant destiny. >> reporter: in 2010, president barack obama awarded her the presidential medal of freedom. ( applause ) her final message posted five days ago on twitter read, "listen to yourself and in that quietude, you might hear the voice of god." >> i am the hope and the dream