We cannot allow a nonentity.

He that can doubt whether he be anything or no, I speak not to; no more than I would argue with pure nothing, or endeavour to convince nonentity that it were something.

If a man knows not that nonentity, or the absence of all being, cannot be equal to two right angles, it is impossible he should know any demonstration in Euclid.

A second attempt to prove the historical nonentity of Dr. Faustus was made at Wittenberg, in the year 1683.