"There are really four dimensions, three which we call the three planes of Space, and a fourth, Time. There is, howeve…"

"Space, as our mathematicians have it, is spoken of as having three dimensions, which one may call Length, Breadth, an…"

"Professor Simon Newcomb was expounding this to the New York Mathematical Society only a month or so ago. You know how…"

"Well, I do not mind telling you I have been at work upon this geometry of Four Dimensions for some time. Some of my r…"

"Are you so sure we can move freely in Space? Right and left we can go, backward and forward freely enough, and men al…"

"We are always getting away from the present moment. Our mental existences, which are immaterial and have no dimension…"

"If I am recalling an incident very vividly I go back to the instant of its occurrence; I become absent minded, as you…"

"Long ago I had a vague inkling of a machine... That shall travel indifferently in any direction of Space and Time, as…"

"The thing the Time Traveler held in his hand was a glittering metallic framework, scarcely larger than a small clock,…"

"Now I want you clearly to understand that this lever, being pressed over, sends the machine gliding into the future, …"