So they can't turn it the right way up, because M. Mondrian chose to make the thing out of sticky-tape, and the stickiness has dried up over the years. I guess

So they can't turn it the right way up, because M. Mondrian chose to make the thing out of sticky-tape, and the stickiness has dried up over the years. I guess there's a reason the masters made their own paint, out of linseed oil and pigments.