From the Lokavipatti Sutta: "Monks, these eight worldly conditions spin after the world, and the world spins after these eight worldly conditions. Which eight? Gain, loss, status, disgrace, censure, praise, pleasure, & pain. These are the eight worldly conditions that spin after the world, and the world spins after these eight worldly conditions."From Nagarjuna's Letter to a Friend:
29) O knower of the world, the eight worldly dharmas-Gain, loss, happiness, unhappiness, sweet words, harsh words, Praise, and blame-should be regarded equallyAs (they) are not worthy of your mind.