(l) Debate whether prophasis comes from A or B is otiose. Thucydides again emphasizes the instability of language and the inadequacy of logos or logoi (as in 22.1 on the speeches): his formulation is challenging, paradoxical, problematic. Significantly, also, prophasis itself embodies both the spatial and temporal: both saying or showing forth and fore-saying or -showing.(m) The language of the aitiai/diaphorai-prophasis distinction implies larger contrasts: between appearance, or words, and reality; between concealment and openness; between subtlety and crudity; and between specific contexts and longer time frames (again like chapter 22).