intermittently in one direction along the latter from the beginning to the end of our lives."
"That," said a Very Young Man, making spasmodic efforts to relight his cigar over the lamp: "that—very clear indeed."
"Now, it is very remarkable that this is so extensively overlooked," continued the Philosophical Inventor, with a slight accession of cheerfulness. "Really this is what is meant by the Fourth Dimension, though some people who talk about the Fourth Dimension do not know they mean it. It is only another way of looking at Time. There is no difference between Time and any of the three dimensions of Space except that our consciousness moves along it. But some foolish people have got hold of the wrong side of that idea. You have all heard what they have to say about this Fourth Dimension?"
"I have not," said the Provincial Mayor.
