Lyndon Johnson actually said...

"I believe the significance of this occasion goes far beyond these bills alone."

"No single Congress in my memory has done so much to keep America as a good and wholesome and beautiful place to live."

"This is a very happy and historic occasion for all who love the great American outdoors, and that, needless to say, includes me."

"My regret at your leaving is tempered by satisfaction in the knowledge that you intend to continue your service to your country."