“Yet in another way, calculus is fundamentally naive, almost childish in its optimism. Experience teaches us that change can be sudden, discontinuous, and wrenching. Calculus draws its power by refusing to see that. It insists on a world without accidents, where one thing leads logically to another. Give me the initial conditions and the law of motion, and with calculus I can predict the future -- or better yet, reconstruct the past. I wish I could do that now.”

“I abandoned the assigned problems in standard calculus textbooks and followed my curiosity. Wherever I happened to be--a Vegas casino, Disneyland, surfing in Hawaii, or sweating on the elliptical in Boesel's Green Microgym--I asked myself, "Where is the calculus in this experience?”

“Marriage is like calculus. Complicated and inexplicably remote. People think it's about loving one another and riding off into the sunset, but no one tells you the horse is lame or that it's an eclipse, and there won't be a sunset that day.”

“In the calculus of feelings, you never really know how one person's absence will affect you more than another's.”

“Calculus was not math. It was a fucking science experiment gone wrong.”

“No avian society ever develops space travel because it's impossible to focus on calculus when you could be outside flying.”