““Chemistry is an overused word. I prefer ‘fit’, that indefinable sensation when a man takes your arm as you move through a door, or leans into you to light your cigarette. (I gave up smoking for Cary and sometimes I still miss it.) Fit is an understanding between bodies: that you’ve been designed the same way, that you speak each other’s language, and fluently. It’s all about physical compatibility and has nothing to do with whether you’ll last or even have anything to talk about afterwards; fit is no relation to the brain, and only a distant cousin of the heart.””
