Arthur Darby Nock, "Early Gentile Christianity and Its Hellenistic Background," Essays on Religion and the Ancient World
, Vol. I (Cambridge: Harvard University Press, 1972), pp. 49-133 (at 50):
We have to deal on the one hand with assured facts, on the other with
more or less probable explanations of or inferences from them. With the
latter there must come in an element of subjectivity and room for honest
divergence of opinion. Few critics, whether conservative or radical, can
hope to be free from preconceived ideas and from the desire to find in
the facts something which they wish to find.