Note 39 — Chapter VI · OF REASON AND SPEECH.
Reading edition
Cicero’s point of view appears to be that the mind-picture grasps the object: ‘[visum] cum acceptum iam et adprobatum esset, [Zeno] comprehensionem appellabat, similem eis rebus quae manu prehenderentur’ Cic. Ac. i 11, 41. See further Stein, Psych. ii 174, and R. D. Hicks, Stoic and Epicurean, p. 71.