““Epictetus actually says all the enmity between people is down to a single judgement of this kind, they ‘put themselves and what belongs to themselves in the category of things which lie outside the sphere of volition’ (Discourses, 2.22). We see dogs playfully fawning on each other and might say that they ‘love’ one another as ‘friends’ but if we throw a piece of meat between them then a fight breaks out and they are quickly pitted against each other. Throw some land or money between father and son, he says, and we will see how fragile the bond is between them, as long as external things are confused with our ultimate good (Discourses, 3.24).””