Some people just doesn't give a fuck

Nihilism is the philosophical doctrine suggesting the negation of one or more putatively meaningful aspects of life. Most commonly, nihilism is presented in the form of existential nihilism, which argues that life is without objective meaning, purpose, or intrinsic value. Moral nihilists assert that morality does not inherently exist, and that any established moral values are abstractly contrived. Nihilism can also take epistemological or ontological/metaphysical forms, meaning respectively that, in some aspect, knowledge is not possible, or that reality does not actually exist.

I have read about this theory while searching on the works of a philosopher named Friedrich Nietzsche. Its definition intrigued me and I did more research about it.
 
 
 
Nietzsche characterized nihilism as emptying the world and especially human existence of meaning, purpose, comprehensible truth, or essential value. This observation stems in part from Nietzsche's perspectivism, or his notion that "knowledge" is always by someone of some thing: it is always bound by perspective, and it is never mere fact.


^{The belief of someone that everything does not have importance.}

Rather, there are interpretations through which we understand the world and give it meaning. Interpreting is something we can not go without; in fact, it is something we need. One way of interpreting the world is through morality, as one of the fundamental ways in which people make sense of the world, especially in regard to their own thoughts and actions.

From his perspectivism, Nietzsche explained that all of these rely on our own perspectives.
That we ourselves give meaning to what topic is being talked about, especially with the extensive use of morality that we still consider if our thoughts and actions will affect our relationships with others.