The Scarecrow was now the ruler of the Emerald City, and although he was not a Wizard the people were proud of him. "For," they said, "there is not a… - L. Frank Baum

Imagination has brought mankind through the Dark Ages to its present state of civilization. Imagination led Columbus to discover America. Imagination led Franklin to discover electricity. Imagination has given us the steam engine, the telephone, the talking-machine and the automobile, for these things had to be dreamed of before they became realities. So I believe that dreams - day dreams, you know, with your eyes wide open and your brain-machinery whizzing - are likely to lead to the betterment of the world. The imaginative child will become the imaginative man or woman most apt to create, to invent, and therefore to foster civilization.

That proves you are unusual,” returned the Scarecrow. “and I am convinced that the only people worthy of consideration in this world are the unusual ones. For the common folks are like the leaves of a tree, and live and die unnoticed.

"That wall," explained the Shaggy Man, "is what is called an optical illusion. It is quite real while you have your eyes open, but if you are not looking at it the barrier doesn't exist at all. It's the same way with many other evils in life; they seem to exist, and yet it's all seeming and not true."