You searched for: “solipsism
solipsism (s) (noun), solipsisms (pl)
1. The belief that one's self is the only object of real knowledge or the only thing that really exists: Solipsism is the philosophical idea that just the mind, and nothing else, is present, while everything else, the external world, is uncertain and cannot be verified.
2. The condition of self-centerdness or selfishness: Jane really wondered why some people believe in solipsism and act in such an egocentric and self-seeking way, and so inconsiderate of other people.