 At first glance, this looks very like a modern theory of propositions and indeed propositions (axiômata) are one subspecies of Stoic sayables. But it would be a mistake to assimilate this sub-class of sayables too closely to modern theories of propositions. Modern theories tend to treat propositions as untensed and time-indexed. When I utter the words “It’s warm in Hobart today” I express the proposition that it is warm in Hobart on 25 February 2018. That’s a different proposition from the one I would express with the use of those same words tomorrow. If, as is all too often the case, it is cold tomorrow and what I say by means of the words “It is warm in Hobart today” is false, then the proposition did not change its truth value. The tenseless and time-indexed propositions we express with our words have their truth values eternally. Stoic axiômata are crucially different in this respect. The Stoic theory holds invariant the identity of the sayable corresponding to my utterances on the different occasions, but allows its truth value to change (Diog. Laert., 34E). In addition to these axiômata, the class of so-called ‘complete sayables’ included questions and commands, as well as syllogisms (Diog. Laert., 33F).