"... it is also true that powerlessness tends to corrupt. The more one is abused, the more one can develop a tendency to abuse in turn. The voice of compassion within Jewish tradition acted as a counter-force to this tendency, but in and of itself, it could not always be sufficient to county the psychological power of endless external abuse."
Michael Lerner
Jewish Liberation Theology and Emancipatory Politics, Religion and Economic Justice, ed. Michael Zweigh (1993)
Interpretation: When continually taken advantage of a person or people develop a learned response in kind.