William Blake's father was a hosier.

The notion of parallelism remains central to affine geometry, in which the parallel postulate is replaced by Playfair's axiom, a version of the postulate that relies on neither distance nor angle size.

Unless you are better genned up than Einstein was, the class will seeth with the rumour that you are not his equal, and you and your pions will be quickly discounted.

Here the airless, awkwardly shaped gallery is redeemed by several curiosities of postpainterly abstraction, among them Richard Kalina’s “Luquillo” (1970), a painting-sculpture hybrid made from polyester striped with acrylic and then folded, and Nicholas Krushenick’s neon-bright geometric silkscreens from the late ’60s.