 For universally, Speusippus says, of the things for which the understanding is making a hunt, some it puts forward without having made an elaborate excursion, and sets them up for the investigation to come: it has a clearer contact with these, even more than sight has with visible things; but with others, which it is unable to grasp straight off, but against which it makes its strides by inference, it tries to effect their capture along the lines of what follows.