Excepting of course the merit of absolute truth.
Kingshott's words have been attributed to Christ and nothing you have posted contradicts that.
Who spoke these WORDS?
And call no man your father upon the earth: for One is your Father, Which is in heaven.
Paul after he was 'chosen' directly by Christ, penned this in Colossians 2:8 Beware lest any man spoil you through philosophy and vain deceit, after the tradition of men, after the rudiments of the world, and not after Christ.
The whole book of Colossians is fit for the topic of this discussion if you are of a mind to read it.
To some absolute truth are books filled with philosophy and vain deceit and establishing traditions claiming they are of Christ.