To its very core, the mind of ressentiment man is filled with envy, the impulse to detract, malice, and secret vindictiveness. These affects have become fixed attitudes, detached from all determinate objects. Independently of his will, this man's attention will be instinctively drawn by all events which can set these affects in motion. The ressentiment attitude even plays a role in the formation of perceptions, expectations, and memories. It automatically selects those aspects of experience which can justify the factual application of this pattern of feeling.
L. Coser, trans. (1973), p. 74 - Das Ressentiment im Aufbau der Moralen (1912)