
We didn't see anything about philosophical enlightenment in the Mayor's Transport Strategy for London document so we can only assume that the Thought Of The Day policy currently being implemented at Oval station is the work of plucky, existentially-minded staff.
The 'thoughts' which are currently being broadcast via the station's service information whiteboard (and availabe to all via Ploggle) are generally optimistic in tone and obviously meant to gee up all those glum, early morning commuters.
Although, extra credit has to go to the member of London Underground staff who was brave/foolish enough to write "Pleasure in the job puts perfection in the work" a few days ago.