09/04/1966
https://www.presidency.ucsb.edu...
"Don't we really risk our own damnation every day by destroying the air that gives us life?"
"We have done it with our science, our industry, and our progress."
"I wish I could, but I cannot tell you this morning that we are going to be able to meet successfully all of these challenges."
"I hope that you will give some thought to that."