“Thus we perceive that it can be just as ironic to pretend to know when one knows that one does not know as to pretend not to know when one knows that one knows. Indeed, irony can manifest itself in a more indirect way through an antithetical situation if the irony chooses the simplest and dullest of persons, not in order to mock them but in order to mock the wise…”
Søren Kierkegaard, The Concept of Irony (1841)

This absolutely does your head in. You forget what the words like “know” and “irony” mean after reading certain passages. Last night he read this and some other parts out loud while we laid in bed and after a while I stopped listening and instead focussed on the sound of his jaw, which clicks sometimes when he yawns.

This particular bit is from the Whitechapel Documents of Contemporary Art.