 However, from what has been said so far it is still possible that the folk reading is accurate when it comes to Leibniz’s views on the phenomena of motion, the subject of his theory of mechanics. The case for the folk reading is in fact supported by Leibniz’s resolution of the tension that we mentioned earlier, between the fundamental role of force/virtus (which we will now take to mean mass times speed2) and its association with Aristotelian form. Leibniz’s way out (e.g., Specimen of Dynamics) is to require that while considerations of force must somehow determine the form of the laws of motion, the laws themselves should be such as not to allow one to determine the value of the force (and hence true speed). One might conclude that in this case Leibniz held that the only quantities which can be determined are those of relative position and motion, as the folk reading says. But even in this circumscribed context, it is at best questionable whether the interpretation is correct.