Dionysius the Areopagite Letter to a Priest

LETTER VI.
To Sopatros [72] — Priest.

Do not imagine this a victory, holy Sopatros, to have denounced [73] a devotion, or an opinion, which apparently is not good. For neither—even if you should have convicted it accurately — are the (teachings) of Sopatros consequently good. For it is possible, both that you and others, whilst occupied in many things that are false and apparent, should overlook the true, which is One and hidden. For neither, if anything is not red, is it therefore white, nor if something is not a horse, is it necessarily a man. But thus will you do, if you follow my advice, you will cease indeed to speak against others, but will so speak on behalf of truth, that every thing said is altogether unquestionable. 

Dionysius the Areopagite,

Works (1897)

72 Acts xx. 4 [And there accompanied him into Asia Sopater of Berea; and of the Thessalonians, Aristarchus and Secundus; and Gaius of Derbe, and Timotheus; and of Asia, Tychicus and Trophimus.];
Rom. xvi. 21 [Timotheus my workfellow, and Lucius, and Jason, and Sosipater, my kinsmen, salute you.].

73 Tit. iii. 9 [But avoid foolish questions, and genealogies, and contentions, and strivings about the law; for they are unprofitable and vain.].