Lyndon Johnson actually said...

They also agreed on the urgency of a world-wide effort to promote the non-dissemination and non-acquisition of nuclear weapons, and of conti...

Your devotion to the principles of peace and social justice and your gallant struggle with affliction will remain an inspiration to us all.

Dear Mr. President: I learned with deep regret of your resignation, although I appreciate the reasons for your decision.

Mrs. Johnson joins me in hoping that you will enjoy a quick and complete recovery.