Full Idea
We call those past events true of which at an earlier time this proposition was true: 'They are present now'; similarly, we shall call those future events true of which at some future time this proposition will be true: 'They are present now'.
Gist of Idea
Future events are true if one day we will say 'this event is happening now'
Source
Carneades (fragments/reports [c.174 BCE]), quoted by M. Tullius Cicero - On Fate ('De fato') 9.23-8
Book Reference
Long,A.A.: 'Hellenistic Philosophy' [Duckworth 1986], p.102
A Reaction
This is a very nice way of paraphrasing statements about the necessity of true future contingent events. It still relies, of course, on the veracity of a tensed assertion
Related Idea
Idea 21389 Carneades distinguished logical from causal necessity, when talking of future events [Long on Carneades]