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Emulation is grief arising from seeing one's self, exceeded or excelled by his concurrent, together with hope to equal or exceed him in time to come, by his own ability. But envy is the same grief joined with pleasure conceived in the imagination of some ill-fortune that may befall him.

Thomas Hobbes, John Charles Addison Gaskin (1999). “The Elements of Law, Natural and Politic: Part I, Human Nature, Part II, De Corpore Politico ; with Three Lives”, p.54, Oxford University Press, USA
Emulation is grief arising from seeing one's self, exceeded or excelled by his concurrent, together with hope to equal or exceed him in time to come, by his own ability. But envy is the same grief joined with pleasure