She is a solipsist who refuses to move beyond Descartes’ "I think; therefore I exist."
Optimism fed into what Steve Eisman, a banking analyst who foresaw the crash, calls "hedge-fund disease," characterized by "megalomania, plus narcissism, plus solipsism" and the belief that "to think something is to make it happen."
Barbara Ehrenreich -- Time, 2009 -- http://www.time.com/time/health/article/0,8599,1929155,00.html#ixzz0lBiYzOve(retrieved 04/15/10)
The word you are trying to think of is solipsism.
George Orwell -- 1984
As a result of this difference, Kant skirts right around the abyss of solipsism that Hume’s path leads to and proceeds on an entirely new and different path of his own.
Robert M. Pirsig -- Zen and the Art of Motorcycle Maintenance
The presence of an infant intruded upon Sol’s solipsistic life as a serious academic and Sarai’s profession as music critic for Barnard’s datasphere, but neither minded.
Dan Simmons -- Hyperion
Believing there’s no god stops me from being solipsistic.