What do you think?
Rate this book


96 pages, Hardcover
First published January 1, 1965
Time alone, among the four most famous dimensions, marches on. Length, width and height, if you’ve noticed, just sit there. You can walk up to them with a ruler, and they wait patiently while you measure them. But time, the only nasty dimension, makes you wait instead. If you want to measure it, you must wait until some of it marches on, and even then you can't use your ruler. You can’t even really measure it then; you must content yourself with counting little things that happen while it’s going on, like the ticks of a clock, or the hairs in a comb. And, as Ralph learned on Thursday, time only runs in one direction. You could build a clock that ran backwards, but it would be lying.