Metaphysics of the Hangman Lyrics

On their long journey that leads them toward the light;
Winston Smith shall be their guide
They are trying so hard to believe that two and two makes five.

Reason won't concuss the irrevocable truth
And if there's contradiction:
Keep the faith, burn the proof

To protect ourselves from the superstitions of priests and moralists
And the trickery of evangelists;
Let us be done with the idea of moral law:

Where do your values come from?
From inside yourself?
Or from some self-appointed moral cognoscentes
Who disguised their own ideas
As universal concepts?