Catch the Piccadilly line today? Hear something weird? That would have been a new initiative to cheer you up and inspire you (probably; unless the driver was telling someone to get the hell clear of the closing doors).
Turner-nominated artist Jeremy Deller has compiled a book of quotations for drivers to read out in an attempt to get us thinking. Although today, most of us were probably thinking about moving to a line with air conditioning in future and perhaps not in the best of moods to be told "Nothing is worth more than this day" (Goethe).
So what else might you be hearing as you sweat it out waiting for a clear platform at Earl's Court?
"Everyone should be respected, but no-one idolised" (Albert Einstein)
"There's more to life than increasing its speed" (Ghandi)
"Hell is other people" (Jean-Paul Satre)
So, is this a great idea to steer the idle thoughts of commuters or just more bloody noise pollution?