"We must descend from this cliff."

"You can not be in earnest."

"Why?"

"Do you not see that the stone recedes from beneath us, that we stand on the edge of a wedge overhanging bottomless space?"

"That I understand."

"There is no ladder," and then the foolish remark abashed me as I thought of a ladder six thousand miles in length.

"Go on."

He made no reference to my confusion.

"There is practically no bottom," I asserted, "if I can believe your words; you told me so."

"And that I reiterate."