"Carnism is the belief system in which eating certain animals is considered ethical and appropriate. Carnists—people who eat meat—are not the same as carnivores. Carnivores are animals that are dependent on meat to survive. … Carnists eat meat not because they need to, but because they choose to, and choices always stem from beliefs. Carnism's invisibility accounts for why choices appear not to be choices at all."

“Becoming aware of the intense suffering of billions of animals, and of our own participation in that suffering, can bring up painful emotions: sorrow and grief for the animals; anger at the injustice and deception of the system; despair at the enormity of the problem; fear that trusted authorities and institutions are, in fact, untrustworthy; and guilt for having contributed to the problem. Bearing witness means choosing to suffer. Indeed, empathy is literally “feeling with.” Choosing to suffer is particularly difficult in a culture that is addicted to comfort—a culture that teaches that pain should be avoided whenever possible and that ignorance is bliss. We can reduce our resistance to witnessing by valuing authenticity over personal pleasure, and integration over ignorance.”

“What I've found is that, because most people are deeply disturbed by and feel guilty about eating meat, and yet at the same time fear not eating it, they defend themselves from having to acknowledge such conflicting feelings. These psychological defenses include denial ; justification ; dichotomization ; avoidance ; and, most importantly, dissociation . … When people break through their dissociation, the feelings that typically emerge are empathy—and therefore disgust. That's why people tend to be disgusted by the idea of eating “unusual” animals, such as dogs and gorillas; they haven't learned to dissociate from these kinds of meat. It's also why vegetarians usually find all meats disgusting.”

“We send one species to the butcher and give our love and kindness to another apparently for no reason other than because it's the way things are. When our attitudes and behaviors toward animals are so inconsistent, and this inconsistency is so unexamined, we can safely say we have been fed absurdities. It is absurd that we eat pigs and love dogs and don't even know why. Many of us spend long minutes in the aisle of the drugstore mulling over what toothpaste to buy. Yet most of us don't spend any time at all thinking about what species of animal we eat and why. Our choices as consumers drive an industry that kills ten billion animals per year in the United States alone. If we choose to support this industry and the best reason we can come up with is because it's the way things are, clearly something is amiss. What could cause an entire society of people to check their thinking caps at the door—and to not even realize they're doing so? Though this question is quite complex, the answer is quite simple:.”

“It is impossible to exercise free will as long as we are operating from within the system. Free will requires consciousness, and our pervasive and deep-seated patterns of thought are unconscious; they are outside of our awareness and therefore outside of our control. While we remain in the system, we see the world through the eyes of carnism. And as long as we look through eyes other than our own, we will be living in accordance with a truth that is not of our own choosing. We must step outside the system to find our lost empathy and make choices that reflect what we truly feel and believe, rather than what we've been taught to feel and believe.”

“Think about it: virtually every atrocity in the history of humankind was enabled by a populace that turned away from a reality that seemed too painful to face, while virtually every revolution for peace and justice has been made possible by a group of people who chose to bear witness and demanded that others bear witness as well.”

“But why must the system go to such lengths to block our empathy? Why all the psychological acrobatics? The answer is simple: because we care about animals, and we don't want them to suffer. And because we eat them. Our values and behaviors are incongruent, and this incongruence causes us a certain degree of moral discomfort. In order to alleviate this discomfort, we have three choices: we can change our values to match our behaviors, we can change our behaviors to match our values, or we can change our perception of our behaviors so that they appear to match our values. It is around this third option that our schema of meat is shaped. As long as we neither value unnecessary animal suffering nor stop eating animals, our schema will distort our perceptions of animals and the meat we eat, so that we can feel comfortable enough to consume them.”