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Shiavault - a Vault of Shia Islamic Books Excerpts From the Life and Letters of John Locke 1677.-species The species of things are distinguished and made by chance, in order to naming and names imposed on those things which either the conveniences of life or common observation bring into discourse. The greatest part of the rest, sine nomine herb?, lie neglected, neither differenced by names, nor distinguished into species; viz.
how many flies and worms are there which, though they are about us in great plenty, we have not yet named nor ranked into species, but come under the general names of flies or worms, which yet are as distinct as a horse and a sheep, though we never have had so great occasion to take notice of them.
So that our ideas of species are almost voluntary, or at least different from the idea of Nature by which she forms and distinguishes them, which in animals she seems to me to keep to with more constancy and exactness than in other bodies and species of things: those being curious engines do perhaps require a greater accurateness for their propagation and continuation of their race; for in vegetables we find that several sorts come from the seeds of one and the same individual, as much different species as those that are allowed to be so by philosophers.
This is very familiar in apples, and perhaps other sorts of fruits, whereof some have distinct names and others only the general, though they begin every day to have more and more given them as they come into use.
So that species, in respect of us, are but things ranked into order, because of their agreement inn some ideas which we have made essential in order to our naming them, though what is essentially to belong to any species in reference to Nature be hard to determine; for if a woman should bring forth a creature perfectly of the shape of a man, that never showed any more appearance of reason than a horse, and had no articular language, and another woman should produce another with nothing of the shape, but with the language and reason of a man, I ask which of these you would call by the name man?-both or neither?
**Understanding Arguments Positive and Negative.