I won't ruin it for anyone, but he quotes Wendell Berry - an accomplished writer and defender of sustainable agriculture practices - quite often, and one of the quotes near the end of the book is going to be a rule I'm going to attempt to follow:
Eating with the fullest pleasure - pleasure, that is, that does not depend on ignorance - is perhaps the profoundest enactment of our connection with the world. In this pleasure we experience and celebrate our dependence and our gratitude, for we are living from mystery, from creatures we did not make and powers we cannot comprehend.
Word, Mr. Berry. Word.