he that knows himself despised will always be envious, and still more envious and malevolent if he is condemned to live in the presence of those who despise him.
 Samuel Johnson, The History of Rasselas, Prince of Abissinia (1759). copy citation

Context

“We are in a place where impotence precludes malice, and where all envy is repressed by community of enjoyments.” “There may be community,” said Imlac, “of material possessions, but there can never be community of love or of esteem. It must happen that one will please more than another; he that knows himself despised will always be envious, and still more envious and malevolent if he is condemned to live in the presence of those who despise him. The invitations by which they allure others to a state which they feel to be wretched, proceed from the natural malignity of hopeless misery. They are weary of themselves and of each other, and expect to find relief in new companions.” source