Similar to a quote by Jesse Jackson, which is in turn a modification of a quote by Napoleon Hill: "Whatever the mind of man can conceive and believe, it can achieve."
Misattributed
Source: The Soul of a Butterfly: Reflections on Life's Journey
“What the mind can conceive and believe, and the heart desire, you can achieve.”
“Whatever the mind of man can conceive and believe, it can achieve.”
Actually said by Napoleon Hill, Stone later added the line "...with P.M.A." (Positive Mental Attitude) to the end of this quote.
Misattributed
Variant: Whatever the mind of man can conceive and believe, it can achieve.
“Whatever the mind of man can conceive and believe it can achieve.”
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Variant: Whatever the mind of man can conceive and believe, it can achieve.
Source: Think and Grow Rich: A Black Choice
Speech at Anderson College in Anderson, Indiana (4 March 1979), quoted in Psychology Through the Eyes of Faith (1987) by David G. Myers and Malcolm A. Jeeves. The first sentence is a modification of a quote by Napoleon Hill: "Whatever the mind of man can conceive and believe, it can achieve."
“Faith makes it possible to achieve that which man's mind can conceive and believe.”
Part 6 "Beyond System — The Ultimate Source of Jeet Kune Do"
Jeet Kune Do (1997)
“When I cannot sing my heart, I can only speak my mind.”
"Julia" (1968); these lines were adapted from lines of Sand and Foam (1926) by Khalil Gibran: "When life does not find a singer to sing her heart she produces a philosopher to speak her mind."
Lyrics
“It comforts me to know that anything I put my mind to, and pursue, I can achieve.”
Source: https://www.imdb.com/name/nm11882368/bio?ref_=nm_dyk_qt_sm#quotes
“If I can see it and believe it, then I can achieve it.”
Source: Total Recall: My Unbelievably True Life Story
