For this reason, too, this type of fallacy is to be ranked among those that depend on language; in the first place, because the error is effected the more readily when we are inquiring into a problem in company with others than when we do so by ourselves (for an inquiry with another person is carried on by means of speech, whereas an inquiry by oneself is carried on quite as much by means of the object itself); secondly a man is liable to err, even when inquiring by himself, when he takes speech as the basis of his inquiry; moreover the error arises out of the likeness, and the likeness arises out of the language.