Jealousy is that pain which a man feels from the apprehension that he is not equally beloved by the person whom he entirely loves.

28. — Jealousy is in a manner just and reasonable, as it tends to preserve a good which belongs, or which we believe belongs to us, on the other hand envy is a fury which cannot endure the happiness of others.

Jealousy is perhaps the most involuntary of all strong emotions. It steals consciousness, it lies deeper than thought. It is always there, like a blackness in the eye, it discolours the world.

Jealousy is always a mask for fear: fear that we aren’t able to get what we want; frustration that somebody else seems to be getting what is rightfully ours even if we are too frightened to reach for it. At its root, jealousy is a stingy emotion.

Jealousy is a strange transformer of characters.

Jealousy is a dog's bark which attracts thieves.

Jealousy is like a raging toothache. One cannot do anything when one is jealous, not even sit down. Once can only come and go. Back and forth.

Jealousy has the amazing power to illuminate a single person in an intense beam of light, keeping the multitude of others in total darkness.

jealousy knows more than truth does.

Pay attention to what you envy. Jealousy is an ugly emotion, but it tells the truth. You mostly envy those who have what you desire.

Jealousy, you know, is usually not an affair of causes. It is much more-how shall I say?-fundamental than that. Based on the knowledge that one's love is not returned. And so one goes on waiting, watching, expecting...that the loved one will turn to someone else.

There is a soul-jealousy that can be as frantic as any body-jealousy.

Jealousy is the most dreadfully involuntary of all sins.

"Jealous, O’Shea?"
"Actually… I am."