The word "philosphy" is presented as a reversal poem so that it reads the same when the print is turned upside down. Dom Sylvester Houedard, the British poet, also created poem reversals which could be read in a similar manner but the reversal created a new word(s). In Langdon's print, one aphorism reads "Philosophy may require looking at ideas from both sides." -- Source of annotation: Marvin or Ruth Sackner.