If knowledge isn't self-knowledge it isn't doing much, mate. Is the universe expanding? Is it contracting? Is it standing on one leg and singing 'When Father Painted the Parlour'? Leave me out. I can expand my universe without you. 'She walks into beauty, like the night of cloudless climes and starry skies, and all that's best of dark and bright meet in her aspect and her eyes.

It's where we're nearest to our humanness. Useless knowledge for its own sake. Useful knowledge is good, too, but it's for the faint-hearted, an elaboration of the real thing, which is only to shine some light, it doesn't matter where on what, it's the light itself, against the darkness, it's what's left of God's purpose when you take away God.

Real data is messy. ...It's all very noisy out there. Very hard to spot the tune. Like a piano in the next room, it's playing your song, but unfortunately it's out of whack, some of the strings are missing, and the pianist is tone deaf and drunk- I mean, the noise! Impossible!

It is better of course to know useless things than to know nothing.