"the fault of the keen teacher is to start to intervene too early" in German The fault of the keen teacher is to start to intervene too early. Der Fehler, den der begeisterte Lehrer gerne macht, ist, zu früh einzugreifen. Detailed translations for "the fault of the keen teacher is to start to intervene too early" The fault of the keen teacher is to start to intervene too early. The fault of the keen teacher is to start to intervene too early. Der Fehler, den der begeisterte Lehrer gerne macht, ist, zu früh einzugreifen.