申論題內容
⑵ At that age, I'd take any excuse to make estimates and do minor arithmetic. I'd calculate
our gas mileage – figure out useless statistics on things like grocery spending. I'd been
hearing an ad campaign about smoking. I can't remember the details, but basically the ad
said, every puff of a cigarette takes some number of minutes off of your life: I think it
might have been two minutes per puff. At any rate, I decided to do the math for my
grandmother. I estimated the number of cigarettes per day, estimated the number of puffs
per cigarette and so on. When I was satisfied that I'd come up with a reasonable number, I
poked my head into the front of the car, tapped my grandmother on the shoulder, and
proudly proclaimed, "At two minutes per puff, you've taken nine years off your life!"