It is true that this practical realism threatens the tenability of an epistemological idealism, but the two have been united, and because of their common emphasis upon the individual such procedure is not entirely inconsequential.
"The Approach to Philosophy"
Ralph Barton Perry
The tenability of these alternative positions has to be considered apart from the argument of the Aesthetic, for this, as we have seen, breaks down.
"Kant's Theory of Knowledge"
Harold Arthur Prichard
This theory, that Browning's aversion to the spiritualist circle arose from an absolute denial of the tenability of such a theory of life and death, has in fact often been repeated.
"Robert Browning"
G. K. Chesterton