We have defined envy as a feeling of pain that a person experiences when he sees someone else possesses something which he does not. Jealousy arises when a person possesses something of great value and significance to himself and fears that someone else will deprive him of it. Threats to self-esteem are usually involved in both envy and jealousy, but the situations that provoke them are different and the jealous person will probably be more ready to take overt action to protect what he believes is rightfully his. Overt crimes of passion motivated by jealousy are frequent, whereas crimes of envy tend to be secretive. In general it is shameful to be envious but more acceptable to be jealous in protecting what one rightfully possesses.