"Don't eat anything your great-grandmother wouldn't recognize as food."

"Yes, I very much like to have a personal stake in what I'm writing about."

"Meat is a mighty contributor to climate change and other environmental problems. The amount of meat we're eating is one of the leading causes of climate change. It's as important as the kind of car you drive - whether you eat meat a lot or how much meat you eat."

"There's been progress toward seeing that nature and culture are not opposing terms, and that wilderness is not the only kind of landscape for environmentalists to concern themselves with."

"My work has also motivated me to put a lot of time into seeking out good food and to spend more money on it."

"In addition to contributing to erosion, pollution, food poisoning, and the dead zone, corn requires huge amounts of fossil fuel - it takes a half gallon of fossil fuel to produce a bushel of corn."

"More grass means less forest; more forest less grass. But either-or is a construction more deeply woven into our culture than into nature, where even antagonists depend on one another and the liveliest places are the edges, the in-betweens or both-ands..... Relations are what matter most."

"The big journals and Nobel laureates are the equivalent of Congressional leaders in science journalism."

"Fairness forces you - even when you're writing a piece highly critical of, say, genetically modified food, as I have done - to make sure you represent the other side as extensively and as accurately as you possibly can."

"Plus, I love comic writing. Nothing satisfies me more than finding a funny way to phrase something."

"It was the same industrial logic- protein is protein- that made feeding rendered cow parts back to cows seem like a sensible thing to do, until scientists figured out that this practice was spreading BSE [mad cow disease]."

"By far the biggest portion of a bushel of American commodity corn (about 60% of it, or some 50k kernels) goes to feeding livestock, and much of that goes to feeding America's 100 million beef cattle."

"The single greatest lesson the garden teaches is that our relationship to the planet need not be zero-sum, and that as long as the sun still shines and people still can plan and plant, think and do, we can, if we bother to try, find ways to provide for ourselves without diminishing the world."

"Smil estimates that two of every five humans on Earth today would not be alive if not for Fritz Haber's invention of the Haber-Bosch process."

"Every cuisine has its characteristic 'flavor principle,' Rozin contends, whether it is tomato-lemon-oregano in Greece; lime-chili in Mexico; onion-lard-paprika in Hungary, or, in Samin's Moroccan dish, cumin-coriander-cinnamon-ginger-onion-fruit. (And in America? Well, we do have Heinz ketchup, a flavor principle in a bottle that kids, or their parents, use to domesticate every imaginable kind of food. We also now have the familiar salty-umami taste of fast food, which I would guess is based on salt, soy oil, and MSG."

"A growing and increasingly influential movement of philosophers, ethicists, law professors and activists are convinced that the great moral struggle of our time will be for the rights of animals."

"Very simply, we subsidize high-fructose corn syrup in this country, but not carrots. While the surgeon general is raising alarms over the epidemic of obesity, the president is signing farm bills designed to keep the river of cheap corn flowing, guaranteeing that the cheapest calories in the supermarket will continue to be the unhealthiest."

"Wet milling (to produce starch) is an energy-intensive way to make food; for every calorie of processed food it produces, another ten calories of fossil fuel energy are burned."

"Yet the organic label itself-like every other such label in the supermarket-is really just an imperfect substitute for direct observation of how a food is produced, a concession to the reality that most people in an industrial society haven't the time or the inclination to follow their food back to the farm, a farm which today is apt to be, on average, fifteen hundred miles away."

"Curiously, the one bodily fluid of other people that doesn't disgust us is the one produced by the human alone: tears. Consider the sole type of used tissue you'd be willing to share."

"It's brutal out there. A bear will eat a lactating ewe alive, starting with her udders. as a rule, animals in the wild don't get good deaths surrounded by their loved ones."

"So this is what commodity corn can do to a cow: industrialize the miracle of nature that is a ruminant, taking this sunlight- and prairie grass-powered organism and turning it into the last thing we need: another fossil fuel machine. This one, however, is able to suffer."

"For at the same time many people seem eager to extend the circle of our moral consideration to animals, in our factory farms and laboratories we are inflicting more suffering on more animals than at any time in history."

"A lawn is nature under totalitarian rule."

"It's all very Italian (and decidedly un-American): to insist that doing the right thing is the most pleasurable thing, and that the act of consumption might be an act of addition rather than subtraction."

"You cannot eat apples planted from seeds. They must be grafted, cloned."

"Even in the pages of the New York Times and The New Yorker, it seems the epithet 'virtuous,' when applied to an act of personal environmental responsibility, may be used only ironically. Tell me: How did it come to pass that virtue - a quality that for most of history has generally been deemed, well, a virtue - become a mark of liberal softheadedness? How peculiar, that doing the right thing by the environment - buying the hybrid, eating like a locavore - should now set you up for the Ed Begley Jr. treatment."

"Corn is an efficient way to get energy calories off the land and soybeans are an efficient way of getting protein off the land, so we've designed a food system that produces a lot of cheap corn and soybeans resulting in a lot of cheap fast food."

"The blessing of the omnivore is that he can eat a great many different things in nature. The curse of the omnivore is that when it comes to figuring out which of those things are safe to eat, he's pretty much on his own."

"I think perfect objectivity is an unrealistic goal; fairness, however, is not."

"Darwin called such a process artificial, as opposed to natural, selection, but from the flower's point of view, this is a distinction without a difference: individual plants in which a trait desired by either bees or Turks occurred wound up with more offspring."

"Without the potato, the balance of European power might never have tilted north."

"Originally, the atoms of carbon from which we're made were floating in the air, part of a carbon dioxide molecule. The only way to recruit these carbon atoms for the molecules necessary to support life-the carbohydrates, amino acids, proteins, and lipids-is by means of photosynthesis. Using sunlight as a catalyst the green cells of plants combine carbon atoms taken from the air with water and elements drawn from the soil to form the simple organic compounds that stand at the base of every food chain. It is more than a figure of speech to say that plants create life out of thin air."

"My writing is remarkably non-confessional; you actually learn very little about me."