In my opinion this criticism is a bit of a straw man, but in fairness to Nietzsche, it is not a result of his misinterpretation but rather poor communication on

In my opinion this criticism is a bit of a straw man, but in fairness to Nietzsche, it is not a result of his misinterpretation but rather poor communication on the part of the stoics. The state of mind that the stoics advocate is one of acceptance and non-attachment to outcomes. Stoicism and Buddhism are really quite similar in this regard. This pattern repeats itself endlessly in philosophy. In fact, I would argue that variations in the definition of "is" are responsible for more philosophical writing than the actual questions posed.