I can assure you that there is no career which you will adopt when you leave college that will bring you a more and greater sense of satisfaction and a greater feeling of participation in a great effort than will your work here or in your state or in your community...this generation of Americans - you here who will be in positions of responsibility for the rest of this century - will deal with the most difficult, sensitive, and dangerous problems that any society of people has ever dealt with at any age...The Greeks defined happiness as the full use of your powers along the lines of excellence, and I can imagine no place where you can use your powers more fully along lines more excellent in the 1960's than to be in the service of the United States.