Jealousy is a disease, love is a healthy condition. The immature mind often confuses one for the other, or assumes the greater the love, the greater the jealousy. In fact they are almost incompatible; both at once produce unbearable turmoil.
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"Jubal Harshaw" in the first edition (1961); this is another line not in the "Uncut" edition of 1991 based on his original manuscripts, because this was one of the lines that Heinlein added, rather than trimmed down, during the editing process of the first edition.Robert A. Heinlein
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I received an impassioned letter from Sonoko. There was no doubt that she was truly in love. I felt jealous. Mine was the unbearable jealousy a cultured pearl must feel toward a genuine one. Or can there be such a thing in this world as a man who is jealous of the woman who loves him, precisely because of her love?
Yukio Mishima
More inspiring and interesting teaching alone can make progress in education possible: for such teaching alone has power to produce greater self-activity, greater concentration of mind, greater desire to learn not only how to get a living, but how to live.
John Lancaster Spalding
Love is the master-key that opens the gates of happiness, of hatred, of jealousy, and, most easily of all, the gate of fear. How terrible is the one fact of beauty!
Oliver Wendell Holmes
A competent and self-confident person is incapable of jealousy in anything. Jealousy is invariably a symptom of neurotic insecurity.
Robert A. Heinlein
The principal difference between love and hate is that love is an irradiation, and hate is a concentration. Love makes everything lovely; hate concentrates itself on the object of its hatred. All the fearful counterfeits of love — possessiveness, lust, vanity, jealousy — are closer to hate: they concentrate on the object, guard it, suck it dry.
Sydney J. Harris
Heinlein, Robert A.
Heinrich, Bernd
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