“…It is about a barley drink that has to be stirred in order for it to be enjoyed, and which separates into its component parts of barley, honey and wine in the absence of movement, thereby ceasing to be the drink that it is intended to be. According to Kirk (1960), although Heraclitus clearly saw some apparently stable things, such as rivers, as actually consisting of constant processes of change, he did not suggest that absolutely everything, for example a rock or a bronze cauldron, was undergoing continuous change. Kirk et al (1983) argue that, for Heraclitus, processes of change must be observable through the senses, even though they might not at first sight be obvious, just as the flows of water in a river can be sensed by anyone stepping into it, and that he would not have accepted a claim that something was changing if that change were completely imperceptible even to the astute and thoughtful observer.…”