'Now, it is very remarkable that this is so extensively overlooked,' continued the Time Traveller, 
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?'