Lyndon Johnson actually said...

"You have taken leadership in the great work of keeping Latin America free from the threat of nuclear weapons."

"I want you to feel at home in my house, as I do in yours."

"At a time when the growing shortage of food has become a grim problem for much of the world, Mexican agriculture has produced a new strain of wheat which will help to revolutionize agriculture in all ..."

"In my welcoming statement earlier today, I mentioned, Mr. President, what your great country is doing to help overcome food deficits in other parts of the world."