Midrash su Levitico 11:41

1) (Vayikra 11:41) ("And every creeping thing (sheretz) that creeps upon the earth is detestable; it shall not be eaten.") "every creeping thing that creeps upon the earth": to exclude the insects in peas and the mites in lentils and the worms in dates and figs. "it shall not be eaten": to include (in liability) the feeder (of a minor) as well as the eater.

2) (Vayikra 11:42) "that go upon the belly": This is the snake. "all that go upon the belly": to include snails and the like. "that go upon four": This is the scorpion. "all that go upon four": to include the beetle and the like. "the many-footed": This is the centipede. "until all that are many-footed" to include their like. "of all creeping things that creep": to include the worms in the roots of olives (i.e., while they are attached) and in the roots of figs. "You shall not eat them": I might think they could be fed to minors; it is, therefore, written (Vayikra 11:41): "it shall not be eaten."

3) (Vayikra 11:43): "Do not make your souls detestable by (eating) every creeping thing that creeps" (Vayikra 11:41): "upon the earth": to include (for liability) sheratzim that separated (from the host to the earth) and returned (to the host). (Vayikra 11:43): "and you shall not be tamei by (eating) them": This tells me only of stringent tumah (i.e., that he does not confer tumah upon men and vessels. Whence is it derived that he does sustain the lesser tumah of himself becoming tamei? From (Vayikra 11:43): "and you will be rendered tamei through them." I might think that their blood and their fats are like them (to render the eater tamei); it is, therefore, written "through them," and not through their blood and their fats. "And you shall not become tamei with them, and you will be rendered tamei through them" — If you make yourselves tamei with them, your end will be to have been rendered tamei through them. (Vayikra 11:44) "For I am the L–rd your G d. And you shall make yourselves holy and you shall be holy, for I am holy." Just as I am holy, so are you holy. Just as I am divorced (from the material), so, you, divorce yourselves (from materialism).