# Solipsism | | **Solipsism** is the philosophical idea that only one's mind is sure to exist. As an epistemological position, solipsism holds that knowledge of anything outside one's own mind is unsure; the external world and other minds cannot be known and might not exist outside the mind. | |-|-| | | wikipedia:: [Solipsism](https://en.wikipedia.org/wiki/Solipsism) |