Most people never learn that their accomplishments will ultimately fail to provide the relief and happiness we tell ourselves they will. Or they come to understand this only after so much time and money, so many relationships and moments of inner peace, were sacrificed on the altar of achievement.
Ryan Holiday • Stillness Is the Key

You will learn the truth by experience: the things that people value highly and try hardest to get do them no good once they have them. Those who don’t have them imagine that, once they do, everything good will be theirs; then they do get them, and the heat of their desires is the same, their agitation is the same, their disgust with what they poss
... See moreWard Farnsworth • The Practicing Stoic: A Philosophical User's Manual
Four Thousand Weeks: Time Management for Mortals
We’ve been led to believe that our lives will always ascend, for example, and are shocked to discover they oscillate instead. Our society tells us we should be basking in progress, but our experience tells us we are beset by slip-ups. Might this gap help explain the anxiety so many of us feel?
Bruce Feiler • Life Is in the Transitions: Mastering Change at Any Age
Once we get the things we are striving for, we rarely remain satisfied with them. The things are just the bait. Chasing after them forces us to evolve, and it is the evolution and not the rewards themselves that matters to us and to those around us.