"You have got too deep there," said the doctor. "I cannot tell you."
"But there must be some reason," said Daisy; "or it would stand still."
"It is in the nature of the thing, I suppose," said Dr. Sandford; "but we do not fully know its nature yet. Only what I am telling you."
"How came people to find these things out?"
"By watching and experimenting and calculating."
"Then, how big is the sun, Dr. Sandford?"
"How big does it look?"
"Not very large I don't know I can't think of anything it looks like."
"It looks just about as big as the moon does."
"Is it just the same size as the moon? But Dr. Sandford, it is a great deal further off, isn't it?"