She designates the sadistic component as 'destructive'."[30] To then explain the sexual instinct as well in terms of a compulsion to repeat, Freud inserts a myth from Plato that humans are driven to reproduce in order to join together the sexes, which had once existed in single individuals who were both male and female — still "in utter disregard of disciplinary distinctions";[31] and admits again the speculative nature of his own ideas, "lacking a direct translation of observation into theory ... One may have made a lucky hit or one may have gone shamefully astray"'.[32]