The razor you sharpen to-morrow may be far more tractable.

Furthermore, the razor which is comparatively dull to-day may be sharp to-morrow, without further treatment." She said that, in her opinion, that was nonsense, and that he was trying to impose upon a friendless girl, because the topic was one of which men would, ordinarily, have a monopoly, and regarding which they would assume all wisdom, and, perhaps, make jests.
"I am in earnest," he said.

"Razors have moods, and are known to sulk.
But science has solved the conundrum of their antics.

It has been discovered that whetting changes the location of the molecules of metal, that there is frequently left what is not a perfect edge after the supposed sharpening, but that, given time, the molecules will readjust themselves, and the edge return.

My dear, you are now, or at least should be, a woman rarely learned in one great mystery.