fri8sep2006—36w251d68%— 05h01m00s—0utc

There’s an old story about two men on a train. One of them, seeing some naked-looking sheep in a field, said, “Those sheep have just been sheared.’; The other looked a moment longer, and then said, “They seem to be — on this side.” It is in such a cautious spirit that we should say whatever we have to say about the workings of the mind.

John Holt, How Children Learn WP

And since we’re at it, I might as well show off my other train-and-grazing-animals-through-the-window joke:

Two Englishmen are going by train. A conversation isn’t getting on. The train passes a meadow, on which a herd of sheeps pastures. One of the passengers says:

— 1356.

The other man is surprised, but gives no answer. In some time the train passes another pasture. The first passenger says:

— 1693.

His neighbor brakes and asks:

— Sir, our train moves at speed 60 miles per hour. How can you count so quickly? — Oh, sir, it’s very simple! First I count a quantity of legs in a herd and then I divide this number by four.

All Elementary Mathematics, New method of fast calculus

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