Is jealousy eliminable? At what cost? Must it be pathological? Distinctions between jealousy and envy (and between malicious and admiring envy) are explored, as are the psychological and social roots of both. Jealousy need not be mere possessiveness, it may have more to do with self-identity, and envy should not be confused with legitimate resentment of injustice. The relations of jealousy to claims of right, to certain underlying fears, and to certain forms of love are considered.