07/18/1966
https://www.presidency.ucsb.edu...
"I have been heartened by your understanding of the viewpoint of the countries you visited."
"I ask that you report to me periodically on your accomplishments so that we can join in encouraging public discussion of your plans and in taking steps that others may benefit from your experience."
"These are grave challenges, but I am confident that we shall meet them."
"Today, we are certain that pollution adversely affects the quality of our lives."