Most people think that nothing lasts forever. It's such a simple proverb that pretty much everyone seems to agree on. When it comes to good things it is a reminder that what we enjoy now is a fleeting moment of bliss that we should treasure. When it comes to bad things it is an optimistic hope that the hard times will end someday, no matter how unlikely it seems now. It is also a proverb that both optimists and pessimists can fully agree on.
I, however, never believed it.
There is one thing that lasts forever.
It's a grudge.