An emptiness of everything does not occur because an emptiness of suchness does not occur. A ground that is empty of all phenomena occurs; it is suchness. A ground that is empty of suchness does not occur because that is invalidated by an immeasurable [number] of extremely absurd consequences. Therefore, empty of all and empty of all phenomena are extremely different because within the abiding reality there is an emptiness of phenomena but not an emptiness of suchness. This repudiates the assertion that phenomena and suchness are the same with different contradistinctions and also the assertion that they are utterly non-distinct because the two are different [in the sense of] negating that they are one entity. 

-- Dolpopa Sherab Gyaltsen