Life and Letters of Charles Darwin, volume 2 includes the following letter to Darwin from Charles Kingsley, written shortly after the publication of The Origin of Species in 1859:
[With regard to the attitude of the more liberal representatives of the Church, the following letter (already referred to) from Charles Kingsley is of interest:]
C. KINGSLEY TO CHARLES DARWIN. Eversley Rectory, Winchfield, November 18th, 1859.
I have to thank you for the unexpected honour of your book. That the Naturalist whom, of all naturalists living, I most wish to know and to learn from, should have sent a scientist like me his book, encourages me at least to observe more carefully, and perhaps more slowly.
I am so poorly (in brain), that I fear I cannot read your book just now as I ought. All I have seen of it AWES me; both with the heap of facts and the prestige of your name, and also with the clear intuition, that if you be right, I must give up much that I have believed and written.
In that I care little. Let God be true, and every man a liar! Let us know what IS, and, as old Socrates has it, epesthai to logo—follow up the villainous shifty fox of an argument, into whatsoever unexpected bogs and brakes he may lead us, if we do but run into him at last.
Firstly, I can't find the subject of "know what IS", and secondly, I found that "epesthai" may mean "follow", and "logo" may mean "word, thought or reason", but he said "follow up a fox"! I can't get the whole meaning of that?