Forgive your enemies, but never forget their names. - John F. Kennedy

And second, medical space research may revolutionize the technology and the techniques of modern medicine. Whatever new devices are created, for example, to monitor our astronauts, to measure their heart activity, their breathing, their brain waves, their eye motion, at great distances and under difficult conditions, will also represent a major advance in general medical instrumentation. Heart patients may even be able to wear a light monitor which will sound a warning if their activity exceeds certain limits. An instrument recently developed to record automatically the impact of acceleration upon an astronaut's eyes will also be of help to small children who are suffering miserably from eye defects, but are unable to describe their impairment. And also by the use of instruments similar to those used in Project Mercury, this Nation's private as well as public nursing services are being improved, enabling one nurse now to give more critically ill patients greater attention than they ever could in the past.

I come here today...not just because you are doing well and because you are outstanding students, but because we expect something of you. And unless in this free country of ours we are able to demonstrate that we are able to make this society work and progress, unless we can hope that from you we are going to get back all of the talents which society has helped develop in you, then, quite obviously, all the hopes of all of us that freedom will not only endure but prevail, of course, will be disappointed. So we ask the best of you...I congratulate you on what you have done, and most of all I congratulate you on what you are going to do.

There is danger that totalitarian governments, not subject to vigorous popular debate, will underestimate the will and unity of democratic societies where vital interests are concerned.