Le Guin on Fulfillment

“Fulfillment, Shevek thought, is a function of time. The search for pleasure is circular, repetitive, atemporal, The variety seeking of the spectator, the thrill hunter, the sexually promiscuous, always ends in the same place. It has an end. It comes to the end and has to start over. It is not a journey and return, but a closed cycle, a locked room, a cell.
Outside the locked room is the landscape of time, in which the spirit may, with luck and courage, construct the fragile, makeshift, improbable roads and cities of fidelity: a landscape inhabitable by human beings.  

It is not until an act occurs within the landscape of the past and the future that it is a human act. Loyalty, which asserts the continuity of past and future, binding time into a whole, is the root of human strength; there is no good to be done without it.”

p. 275-6

Ursula Le Guin, The Dispossessed 2002 (1974) Orion: St. Ives