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.
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.
Each sporadic burst of work, each minor success and disappointment, each moment of calm and relaxation, seemed merely a temporary halt on my steady descent through layer after layer of depression, like an elevator stopping for a moment on the way down to the basement.
Upon the whole, therefore, she found, what has been sometimes found before, that an event to which she had looked forward with impatient desire, did not in taking place, bring all the satisfaction she had promised herself. It was consequently necessary to name some other period for the commencement of actual felicity; to have some other point on which her wishes and hopes might be fixed, and by again enjoying the pleasure of anticipation, console herself for the present, and prepare for another disappointment.
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.
I was disappointed in Niagara - most people must be disappointed in Niagara. Every American bride is taken there, and the sight of the stupendous waterfall must be one of the earliest, if not the keenest, disappointments in American married life.
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.