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When even the brightest mind in our world has been trained up from childhood in a superstition of any kind, it will never be possible for that mind, in its maturity, to examine sincerely, dispassionately, and conscientiously any evidence or any circumstance which shall seem to cast a doubt upon the validity of that superstition. I doubt if I could do it myself.

— Mark Twain Is Shakespeare Dead? (1909)

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Mind

More quotes by Mark Twain

Always do right. This will gratify some people, and astonish the rest.

You can't depend on your eyes when your imagination is out of focus.

A Connecticut Yankee in King Arthur's Court (1889)

If you tell the truth you don't have to remember anything.

The difference between the almost right word and the right word is really a large matter—'tis the difference between the lightning-bug and the lightning.

Biographies are but clothes and buttons of the man — the biography of the man himself cannot be written.

Mark Twain's Autobiography (1924)

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The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents.

H. P. Lovecraft The Call of Cthulhu (1926)

Anyone who believes exponential growth can go on forever in a finite world is either a madman or an economist.

Kenneth Boulding to Kenneth Boulding in: United States. Congress. House (1973)

The greater part of humanity is too much harassed and fatigued by the struggle with want, to rally itself for a new and sterner struggle with error.

Friedrich Schiller On the Aesthetic Education of Man (1794)

The reasonable man adapts himself to the world: the unreasonable one persists in trying to adapt the world to himself. Therefore all progress depends on the unreasonable man.

George Bernard Shaw Maxims for Revolutionists (1903)

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Quote text and notes from Wikiquote: Mark Twain (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.