 Cleanthes responds to this set of objections with a counter-example that is meant to discredit these criticisms and doubts. Suppose we heard an articulate voice coming from the clouds and the words uttered contain a message instructing us in a way that is worthy of a great, superior being. It is not possible, Cleanthes argues, that we would hesitate for a moment to ascribe some design or purpose to the cause of this voice and conclude that it bears some resemblance to the intelligent source of a human voice (D, 3.2–3/152–3). The situation is not so dissimilar as “when we hear an articulate voice in the dark and thence infer a man” (D, 3.3/152; cp. EU, 4.4/27). According to Cleanthes, it is similarly perverse and unnatural to deny that the various parts of the body and the way in which they are suited to our environment (e.g., legs for walking) are “incontestable proof of design and intention” (D, 3.8/155; cp. 2.9/144–5).