I hope that all of you who are students here will recognize the great opportunity that lies before you in this decade, and in the decades to come, to be of service to our country. The Greeks once defined happiness as full use of your powers along lines of excellence, and I can assure you that there is no area of life where you will have an opportunity to use whatever powers you have, and to use them along more excellent lines, bringing ultimately, I think, happiness to you and those whom you serve."