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All quotes by Orison Swett Marden

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Nearly all the great improvements, discoveries, inventions, and achievements which have elevated and blessed humanity have been the triumphs of enthusiasm.

~Orison Swett Marden

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Biography

Nationality: American

Type: Writer

Born: Unknown

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Quote By KeenBrain. Retrieved August 24, 2026, from

Modern Language Association (MLA):

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Chicago Manual Style (CMS):

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CITE THIS SOURCE

Using the appropriate style guide, simply copy and paste the information below to add the citation to your bibliography.

American Psychological Association (APA):

Quote By Orison Swett Marden KeenBrain. Retrieved August 24, 2026, from

/quotes/quote/o/orison_swett_marden_718738">

Modern Language Association (MLA):

“Quote By Orison Swett Marden” KeenBrain. n.d. Mon. 24 August. 2026 from

/quotes/quote/o/orison_swett_marden_718738">

Chicago Manual Style (CMS):

“Quote By Orison Swett Marden” KeenBrain. Accessed August 24, 2026.

/quotes/quote/o/orison_swett_marden_718738">

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