L'Wren Scott

You'll see the most perfect person, and you are like, 'God, she's, like, perfect.' And then she'll tell you everything that's not perfect. Everyone has their own special set of problems - in their own minds.

I can well imagine that certain writers, even writers that we'd consider today very great writers, may not necessarily have tested highly on IQ just because of their numerical skills, or maybe they may not be very good at memory, and are not particularly good at these kinds of tests.