“Those who remember are usually the unhappy ones. Only those who are able to forget, find the most joy in life.”

“I shall really be very unhappy unless you give me the sort of courage that makes one forget he is afraid.”

“I think you are wrong to want a heart. It makes most people unhappy. If you only knew it, you are in luck not to have a heart.”

“...but those as knows the least have a habit of thinkin' they know all there is to know, while them as knows the most admits what a turr'ble big world this is. It's the knowing ones that realize one lifetime ain't long enough to git more'n a few dips o' the oars of knowledge.”

“Toto did not really care whether he was in Kansas or the Land of Oz so long as Dorothy was with him; but he knew the little girl was unhappy, and that made him unhappy too.”

“I am Oz, the Great and Terrible," spoke the Beast, in a voice that was one great roar. Who are you, and why do you seek me?”

“Well, I cannot claim any great experience in life,' the Saw-Horse answered for himself; 'but I seem to learn very quickly, and often it occurs to me that I know more than any of those around me.' 'Perhaps you do,' said the Emperor; 'for experience does not always mean wisdom. - The Marvellous Land Of Oz by L. Frank Baum pg 89 chapter 11”