“It will be found an unjust and unwise jealousy to deprive a man of his natural liberty upon the supposition he may abuse it.”

“You can only be jealous of someone who has something you think you ought to have yourself.”

“I felt an unrelenting restlessness. It was the first time I had ever experienced jealousy, and that emotion clung to my skin day and night like a dark stain, a contamination I could not shed; it became so unbearable that when finally I rid myself of it, I was freed forever of the desire to possess another person or the temptation ever to belong to anyone.” 

“I am jealous of everything whose beauty does not die.” 

“I am jealous of everything whose beauty does not die. I am jealous of the portrait you have painted of me. Why should it keep what I must lose? Every moment that passes takes something from me and gives something to it. Oh, if it were only the other way! If the picture could change, and I could be always what I am now! Why did you paint it? It will mock me some day—mock me horribly!”