while there can be no proof except such as is
derived from things consequent or things opposite,
which must be sought for either in the time preceding, contemporaneous with or subsequent to the
alleged fact, nor can any single thing be proved save
by reference to something else which must be
greater, less than or equal to it.
Quintilian. With An English Translation. Harold Edgeworth Butler. Cambridge. Cambridge, Mass., Harvard University Press; London, William Heinemann, Ltd. 1921.
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