Eight people will be awarded the 1999 National Humanities Medal by President and Mrs. Clinton today at a special ceremony at the White House. Two of the medal winners are Garrison Keillor and August Wilson. Wilson now lives in Seattle, Washington, but he began his career as a playwright in St. Paul. At an event yesterday sponsored by the National Endowment for the Humanities, Wilson talked about what has inspired him as a writer. Garrison Keillor also spoke at yesterday's event. He talked about the difference between being a writer and hosting A Prairie Home Companion.