"Absence of that knowledge has rendered us a nation of wary label-readers, oddly uneasy in our obligate relationship with the things we eat ... Our words for unhealthy contamination--"soiled" or "dirty"--suggest that if we really knew the number-one ingredient of a garden, we'd all head straight into therapy. I used to take my children's friends out to the garden to warm them up to the idea of eating vegetables, but this strategy sometimes backfired: they'd back away slowly saying, "Oh man, those things touched dirt!" Adults do the same by pretending it all comes from the clean, well-lighted grocery store. We're like petulant teenagers rejecting our mother. We know we came out of her, but ee-ew."