Phrase to use on a maths exam when you just can't get a proof to work. Also used, though less obviously and less blatantly, by professional philosophers, political scientists, and economists.

I finally had the opportunity, in my abstract algebra class Fall 2000, to use this phrase on an exam (the final, at that). I ended up with a B in the course.

This phrase comes from a very funny cartoon by Sidney Harris.

A senior professor is reviewing the chalkboard of his junior colleague. He says, "I think you should be more explicit here in step two." He is pointing to a section of the board that says, in the middle of some complicated-looking equations, 'THEN A MIRACLE OCCURS...'.

It's available on a t-shirt at ;
the cartoon itself is available in a close-up at .

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