John Kennedy actually said...

"I must say it is a beautiful book."

"So I am grateful to all those who participated in a very important public service, and they are to be congratulated."

"And I also want to express my warmest congratulations and appreciation to my wife."

"This started out, as Mrs. Kennedy tells in her foreword, to be, in a sense, a book for boys and girls so that they would get more out of their visit to the White House."