Definition of "solipsism" []

• Philosophy The theory that the self is the only thing that can be known and verified. (noun)
• Philosophy The theory or view that the self is the only reality. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "But that kind of childish solipsism is part of what makes America so gosh-darn unique!"
• "It's like insisting that solipsism is a valid philosophy."
• "No, solipsism is only a valid philosophy if you hold to some implicit individualism, some sort of philosophical anarchism."