I believe that the justification of art is the internal combustion it ignites in the hearts of men and not its shallow, externalized, public manifest… - Glenn Gould

The trouble begins when we start to be so impressed by the strategies of our systematized thought that we forget that it does relate to an obverse, that it is hewn from negation, that it is but very small security against the void of negation which surrounds it. And when that happens, when we forget these things, all sorts of mechanical failures begin to disrupt the functions of the human personality. When people who practice an art like music become captives of those positive assumptions of system, when they forget to credit that happening against negation which system is, and when they become disrespectful of the immensity of negation compared to system — then they put themselves out of reach of that replenishment of invention upon which creative ideas depend, because invention is, in fact, a cautious dipping into the negation that lies outside system from a position firmly ensconced in system.

And I think that this is something that we must all do in this day and age: I think if one is going to pursue performance at a time when the greatest performances of the past and of the present have been made permanent in the record catalogues where anyone can hear [them], one must indeed recompose it or find another way to make a living. I don't think there is an excuse for a performance that simply duplicates what's been done before.

I wasn't motivated to do it [re-record Bach's Goldberg Variations] until rather recently, when it occurred to me, on one of my rare relistenings to that early recording, that it was very nice, but that it was perhaps a little bit like thirty very interesting but somewhat independent-minded pieces, going their own way, and all making a comment on the ground bass on which they are all formed and to which they all conform. And I suddenly felt, not having played it in, well, since I stopped playing concerts, about 20 years, having not played it in all that time, that maybe I wasn't savaged by any over-exposure to it, and that if I looked at it again, I could find a way of making some sort of almost arithmetical correspondence between the theme and the subsequent variations, so that there would be some sort of temporal relationship, I don't want to say just exactly 2, 4, 8, 16, 32, that kind of correspondence, but, you know what I mean, there would be a sense in which, substituting for the fact that Bach had absolutely no melodic design that is continuous but rather a base harmonic design that is continuous, there would be at least a rhythmic design that is continuous, and the sense of pulse that went through it. And that seemed to me sufficient justification [...] to do it all over again.