We come to recognize that playfulness, as a philosophical stance, can be very serious indeed; and moreover, that it possesses an unfailing capacity to arouse ridicule and hostility in those among us who crave certainty, reverence, and restraint.
Friedrich Nietzche

For a child, being carefree is intrinsic to a well-lived life (Read: 6 minutes/Listen: 9 minutes)

The Good-Enough Life. The desire for greatness can be an obstacle to our own potential. (Read: 4 minutes)