Jon Gauthier’s Reviews > Flow: The Psychology of Optimal Experience > Status Update

… But if one gets to be too complacent, feeling that psychic energy invested in new directions is wasted unless there is a good chance of reaping extrinsic rewards for it, one may end up no longer enjoying life, and pleasure becomes the only source of positive experience."

"Unfortunately, this natural connection between growth and enjoyment tends to disappear with time. Perhaps because 'learning' becomes an external imposition when schooling starts, the excitement of mastering new skills gradually wears out. It becomes all too easy to settle down within the narrow boundaries of the self developed in adolescence.