the art of invigorating and prolonging life

Denying negative emotions leads to experiencing deeper and more prolonged negative emotions and to emotional dysfunction.  Constant positivity is a form of avoidance, not a valid solution to life’s problems—problems which, by the way, if you’re choosing the right values and metrics, should be invigorating you and motivating you.
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Sir William Jone’s Andrometer: A chart laying out the benchmarks year-by-year in an educated person’s life. The art of invigorating and prolonging life, by food, clothes, air, exercise, wine, sleep, &c. 1828.

Age 10: Dancing, Music, Drawing, Exercises. Age 24: Ancient orators studied. Age 39: The virtuous assisted. Age 67-69: Perfection of Earthly happiness.