 At any rate, this is how Aquinas solves the paralogism that seems to arise from this account, according to which the true claims that Socrates is a man and man is a species would seem to entail the falsity that Socrates is a species. For if we say that in the proposition ‘Socrates is a man’ the predicate signifies human nature absolutely, but the same nature, on account of its abstract character, is a species, the false conclusion seems inevitable (Klima 1993a).