Envy is looking at someone or something what others have and wanting to have it . In a way this can give that initial boost and motivation to pursue something if you truly want it.
Jealousy is looking at something that others have and want others to not have what you don’t have. This feeling comes from fear. It have negative effects. It is malicious in nature because you may even indulge in destructive behaviour. You just want others to not have what they have because it makes you feel bad.
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