It's been around awhile, this belief about absorbing the qualities of things you eat. Galen's humors of bile and blood and phlegm; how love of foods with excessive heat may bring out fevers and aggression. Wild garlic and leeks, curries and bird chilies— whatever peculiarities of alimentation are thought to reflect the kind of temperament you favor: you are what you eat. And you, you who heat your fragrant lunch of noodles and dumplings in the school or office microwave; you, admiring smoky wreaths of blood sausage at the grocer's and boiled fertilized ducks' eggs—you with your pounded taro and your sweet purple yam: you are the savage who hasn't learned to civilize your appetite. Is myth more bloated than narrative? What to make of the man who, in the 1800s, wanted to eat everything, taste every animal on Earth? While lecturing at university, he liked to unnerve his students by shaking a hyena skull in their pallid faces. His favorite snack was mice on toast. Once and only once, at a fancy dinner, guests passed part of the mummified heart of King Louis XIV around the table— he promptly popped it into his mouth and swallowed.