46 And who is sufficient for these things? For we are not as the many, able to corrupt the word of truth, and mix the wine, which makes glad the heart of man, with water, mix, that is, our doctrine with what is common and cheap, and debased, and stale, and tasteless, in order to turn the adulteration to our profit, and accommodate ourselves to those who meet us, and curry favor with everyone, becoming ventriloquists and chatterers, who serve their own pleasures by words uttered from the earth, and sinking into the earth, and, to gain the special good will of the multitude, injuring in the highest degree, nay, ruining ourselves, and shedding the innocent blood of simpler souls, which will be required at our hands.
Source: Orations (New Advent)