John Kennedy actually said...
I welcome the opportunity for the United States to demonstrate that it is a vigorous and vital society, that it can maintain its defenses, that it can build an educational system second to none, that it can maintain employment at a time when we are increasing our population, and when new machines are taking the jobs of men, that we can make productive use of our agricultural surpluses.
Context
Remarks of Senator John F. Kennedy, Downtown, Lockport, NY
09/27/1960