“But it takes such a varied length of time⁠—to our senses! And as a matter of fact⁠—I say taking it just as a matter of fact,” he repeated, pressing his forefinger so hard against his nose that he bent the end of it quite round, “it is motion, isn’t it, motion in space? Wait a minute! That means that we measure time by space. But that is no better than measuring space by time, a thing only very unscientific people do. From Hamburg to Davos is twenty hours⁠—that is, by train. But on foot how long is it? And in the mind, how long? Not a second!”

“I say,” Joachim said, “what’s the matter with you? Seems to me it goes to your head to be up here with us!”