6 Dionysius did not express his full opinion in the passages alleged.
Well then, what is there in common between the heresy of Arius and the opinion of Dionysius: or why is Dionysius to be called like Arius, when they differ widely? For the one is a teacher of the Catholic Church, while the other has been the inventor of a new heresy. And while Arius to expound his own error wrote a Thaleia in an effeminate and ridiculous style like Sotades the Egyptian, Dionysius not only wrote other letters also, but composed a defence of himself upon the suspicious points, and came out clearly as of right opinions. If then his writings are inconsistent, let them not draw him to their side, for on this assumption he is not worthy of credit. But if, when he had written his letter to Ammonius, and fallen under suspicion, he made his defence so as to better what he had previously said, but did so without changing, it must be evident that he wrote the suspected passages in a qualified sense. But what is written or done in such a sense men have no business to construe maliciously, or wrest each one to a meaning of his own. For even a physician frequently in accordance with his knowledge applies to the wounds he has to deal with, remedies which to some seem unsuitable with a view to nothing but health. In like manner it is the practice of a wise teacher to arrange and deliver his lessons with reference to the characters of his pupils, until he has brought them over to the way of perfection.
Source: De Sententia Dionysii (New Advent)