x1 philosophizes/cogitates/ruminates/thinks profoundly about topic x2, with specifics of thought x3 and methodology x4, belonging to school/branch/super- philosophy x5; x1 is a philosopher/philosophe (not necessarily professional or trained).
flese is an experimental gismu. This word does not imply a professional, trained, expert, credible, or even habitual/common attendance to philosophical (mental) faculty, but does imply a bit more profundity then mere thought or passing notion. See also: filsofo, flese.