< Exercise will make you happy, but only while you're doing it. Getting a raise will make you happy, but only for a short time period after that raise. "Having"

< Exercise will make you happy, but only while you're doing it. Getting a raise will make you happy, but only for a short time period after that raise. "Having" a relationship won't make you that happy, but the process of building the relationship is highly enjoyable. Hey, thank you for crystallising such a fundamental and valuable piece of wisdom so neatly.