Frustration (n.) dams up the normal current of desire so that it overflows into side channels, bringing out perversions that were latent all along.
Frustration (n.) is the outer cause of neurosis and fixation the inner; neither is enough alone.
Frustration (n.) is the climate analysis needs: privation brings a conflict to a head and gathers the force to settle it.
Frustration (n.) from outside is not in itself pathogenic; it makes us ill only when joined by an internal frustration from the ego — which, in those wrecked by success, acts alone.
Frustration (n.) raises the psychical value of what is withheld: the more sexual satisfaction is denied, the more it is prized, and dammed-up libido seeks weak spots.
Frustration (n.) makes people ill most simply: health lasts while love has a real object, and neurosis follows when it is taken away without a substitute.