But near-sighted people have exactly the opposite trouble.

They can't see things except by bringing them near their eyes, because their eyes are not flat enough, and so their spectacles are made with double concave lenses.

When I asked father about it, he gave me a book that explained it all, and that is where I learned the little I know about it." "The _little_! I'd like to know what you call a good deal," said Tom.

"I never saw anybody that knew half as much as you do." "That is only because we live in a new country, Tom, where there are no very well educated people, and because you don't know how much there is to learn in the world.

If these Indians ever get quiet, I hope to learn a good deal more every year than I know now.