The man who has double my salary is doubtless tortured by the thought that someone else in turn has twice as much as he has, and so it goes on. If you desire glory, you may envy Napoleon. But Napoleon envied Caesar, Caesar envied Alexander, and Alexander, I daresay, envied Hercules, who never existed. You cannot, therefore, get away from envy by means of success alone, for there will always be in history or legend some person even more successful than you are. You can get away from envy by enjoying the pleasures that come your way, by doing the work that you have to do, and by avoiding comparisons with those whom you imagine, perhaps quite falsely, to be more fortunate than yourself

Bertrand Russell (1872-1970) English mathematician and philosopher

Conquest of Happiness, Part 1, ch. 6 “Envy” (1930)
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