Ninth Proposition.

“None of the accidents form the substratum of another accident; it cannot be said, This is an accident to a thing which is itself an accident to a substance. All accidents are directly connected with the substance.” The Mutakallemim deny the indirect relation of the accident to the substance, because if such a relation were assumed it would follow that the second accident could only exist in the substance after another accident had preceded it, a conclusion to which they would object even with regard to some special accidents; they prefer to show that these accidents can exist in every possible substance, although such substance is not determined by any other accident; for they hold that all the accidents collectively determine the thing. They advance also another proof [in support of this proposition], namely: The substratum which is the bearer of certain attributes must continue to exist for a certain time; how, then, could the accident, which—according to their opinion—does not remain in existence for two moments, become the substratum of something else?