Those who suffer from an exaggerated sense of their own ability and accomplishment are continually subject to frustration, disappointment, and rage when reality intrudes and the world doesn't validate their idealized view of themselves.
It has sustained me in moments of success and in moments of disappointment. Without it, I'd be a different person. And without it, I doubt I'd be here today.
... when the struggle seems to be drifting definitely towards a world social democracy, there may still be very great delays and disappointments before it becomes an efficient and beneficent world system. Countless people ... will hate the New World Order and will die protesting against it. When we attempt to evaluate its promise, we have to bear in mind the distress of a generation or so of malcontents, many of them quite gallant and graceful-looking people.
There are still many more days of failure ahead, whole seasons of failure, things will go terribly wrong, you will have huge disappointments , but you have to prepare for that, you have to expect it and be resolute and follow your own path.
It is folly to pretend that one ever wholly recovers from a disappointed passion. Such wounds always leave a scar. There are faces I can never look upon without emotion, there are names I can never hear spoken without almost starting.
When people look back at their childhood or youth, their wistfulness comes from the memory, not of what their lives had been in those years, but of what life had then promised to be. The expectation of some indefinable splendor, of the unusual, the exciting, the great is an attribute of youth and the process of aging is the process of that expectations' gradual extinction. One does not have to let it happen. But that fire dies for lack of fuel, under the gray weight of disappointments.
When doubts haunt me, when disappointments stare me in the face, and I see not one ray of hope on the horizon, I turn to Bhagavad-gita and find a verse to comfort me; and I immediately begin to smile in the midst of overwhelming sorrow. Those who meditate on the Gita will derive fresh joy and new meanings from it every day.
If the behaviour of babies and small children is any guide, we emerge into the world with our tendencies to imbalance already well entrenched. In our playpens and high chairs, we are rarely far from displaying either hysterical happiness or savage disappointment, love or rage, mania or exhaustion--and, despite the growth of a more temperate exterior in adulthood, we seldom succeed in laying claim to lasting equilibrium, traversing our lives like stubbornly listing ships on choppy seas.
The lapse of ages changes all things - time - language - the earth - the bounds of the sea - the stars of the sky, and everything 'about, around, and underneath' man, except man himself, who has always been and always will be, an unlucky rascal. The infinite variety of lives conduct but to death, and the infinity of wishes lead but to disappointment. All the discoveries which have yet been made have multiplied little but existence.
Expect nothing, live frugally on surprise. Become a stranger to need of pity. Or if compassion be freely given out, take only enough. Stop short of the urge to plead, then purge away the need. Wish for nothing larger than your own small heart or greater than a star. Tame wild disappointment with caress, unmoved and cold. Make of it a parka for your soul. Discover the reason why so tiny human midget exists at all, so scared and so unwise. But expect nothing, live frugally on surprise.
Peace comes from within. Do not seek it without. It can be argued that peace and happiness comes from the subjective internalised perspective of realizing things could be worse and being grateful they aren't. The alternative view that peace and happiness comes from the objective external perspective of having more and better things than at present, while important for growth, can be a never-ending source of jealousy, dissatisfaction and disappointment. A balance of the two, where people are grateful for what they have while striving for more seems the best blended perspective.