Because when you have millions of people with this kind of need for gratification and the culture is saying that it's possible for everyone to satisfy all of their needs and desires all of the time there are obviously going to be clashes – clashes of ego.
Realize that if you have time to whine and complain about something then you have the time to do something about it.
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By recollecting the pleasures I have had formerly I renew them I enjoy them a second time while I laugh at the remembrance of troubles now past and which I no longer feel.
