Ressentiment is always to some degree a determinant of the romantic type of mind. At least this is so when the romantic nostalgia for some past era (Hellas, the Middle Ages, etc.) is not primarily based on the values of that period, but on the wish to escape from the present. Then all praise of the past has the implied purpose of downgrading present-day reality.

L. Coser, trans. (1973), p. 68 - Das Ressentiment im Aufbau der Moralen (1912)