“but one egg isn't good for anything at all”

“If we didn't want anything, we would never get anything, good or bad. I think our longings are natural, and if we act as nature prompts us we can't go far wrong.”

“...thanks for good deeds do not amount to much except to prove one's politeness.”

“It isn't what we are, but what folks think we are, that counts in this world.”

“If you only have brains on your head you would be as good a man as any of them, and a better man than some of them. Brains are the only things worth having in this world, no matter whether one is a crow or a man.”

“I think,' said the little Queen, smiling, 'that your friend must be the richest man in all the world.' 'I am,' returned the Scarecrow; 'but not on account of my money. For I consider brains to be far superior to money, in every way. You may have noticed that if one has money without brains, he cannot use it to advantage; but if one has brains without money, they will enable him to live comfortably to the end of days.' 'At the same time,' declared the Tin Woodman, 'you must acknowledge that a good heart is a thing that brains cannot create, and that money cannot buy. Perhaps, after all it is I who am the richest man in all the world.' 'You are both rich, my friends,' said Ozma gently; 'and your riches are the only riches worth having - the riches of content!' - The Marvellous Land Of Oz by L. Frank Baum pg 192 chapter 24”

“...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.”