Passages: "Derivative Sport in Tornado Alley"
From David Foster Wallace's essay about growing up playing tennis in the Midwest (available here online and as part of the fantastic collection A Supposedly Fun Thing I'll Never Do Again). He writes about being a lazy but occasionally inspired player thanks to his love of math, and it's a nerdily detailed and completely entertaining read:
When I left my boxed township of Illinois farmland to attend my dad's alma mater in the lurid jutting Berkshires of western Massachusetts, I all of a sudden developed a jones for mathematics. I'm starting to see why this was so. College math evokes and catharts a Midwesterner's sickness for home. I'd grown up inside vectors, lines and lines athwart lines, grids — and, on the scale of horizons, broad curving lines of geographic force, the weird topographical drain-swirl of a whole lot of ice-ironed land that sits and spins atop plates. The area behind and below these broad curves at the seam of land and sky I could plot by eye way before I came to know infinitesimals as easements, an integral as schema. Math at a hilly Eastern school was like waking up; it dismantled memory and put it in light. Calculus was, quite literally, child's play.
Also:
Tennis-wise, I had two preternatural gifts to compensate for not much physical talent. Make that three. The first was that I always sweated so much that I stayed fairly ventilated in all weathers. Oversweating seems an ambivalent blessing, and it didn't exactly do wonders for my social life in high school, but it meant I could play for hours on a Turkish-bath July day and not flag a bit so long as I drank water and ate salty stuff between matches. I always looked like a drowned man by about game four, but I didn't cramp, vomit, or pass out, unlike the gleaming Peoria kids whose hair never even lost its part right up until their eyes rolled up in their heads and they pitched forward onto the shimmering concrete. A bigger asset still was that I was extremely comfortable inside straight lines. None of the odd geometric claustrophobia that turns some gifted juniors into skittish zoo animals after a while. I found I felt best physically enwebbed in sharp angles, acute bisections, shaved corners. This was environmental. Philo, Illinois, is a cockeyed grid: nine north-south streets against six northeast-southwest, fifty-one gorgeous slanted-cruciform corners (the east and west intersection-angles' tangents could be evaluated integrally in terms of their secants!) around a three-intersection central town common with a tank whose nozzle pointed northwest at Urbana, plus a frozen native son, felled on the Salerno beachhead, whose bronze hand pointed true north. In the late morning, the Salerno guy's statue had a squat black shadow-arm against grass dense enough to putt on; in the evening the sun galvanized his left profile and cast his arm's accusing shadow out to the right, bent at the angle of a stick in a pond. At college it suddenly occurred to me during a quiz that the differential between the direction the statue's hand pointed and the arc of its shadow's rotation was first-order. Anyway, most of my memories of childhood — whether of furrowed acreage, or of a harvester's sentry duty along RR104W, or of the play of sharp shadows against the Legion Hall softball field's dusk — I could now reconstruct on demand with an edge and protractor.

