Read the excerpt from "Keynote Address.” Fellow Democrats, we are here tonight because in large part we share our faith in our country and in its processes of orderly, humanistic change. Change and challenge should not deter us now. We have long been a party of change and challenge. The need for new ideas and improved institutions should not deter us now. We have long been a party of new ideas. That today’s crisis is one of the human spirit should not deter us. We have long been a party which gave priority to the needs of human beings. So let us go forward with programs, responsive to the needs of today and responsive to the needs of tomorrow. Fellow Americans, this is our country. Its future is what we, its citizens, will make it. How does the speaker develop kairos in this excerpt?