Quotes about mind
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“Love is the unity of soul, mind and body. Pay attention to the precedence… ”

“If you can change people's minds — you can change the world.”

Source: Review of Hunger and Love by Lionel Britton, in The Adelphi (April 1931)

Source: https://www.frasicelebri.it/frasi-di/rita-levi-montalcini/.

“Remember: You can reach any goal you have in mind.”

“There is no limit to what a man can do or where he can go if he doesn't mind who gets the credit.”
Reagan reportedly displayed a plaque with this proverbial aphorism on his Oval Office desk (Michael Reagan, The New Reagan Revolution (2010), p. 177). Harry S. Truman is reported to have repeated versions of the aphorism on several occasions. This exact wording was in wide circulation in the 1960s, and the earliest known variant has been attributed to Benjamin Jowett (1817–1893).
Misattributed

Source: Jesus Among Other Gods: The Absolute Claims of the Christian Message

“Our minds sometimes see what our hearts wish were true.”
Source: Angels & Demons

“Emancipate yourself from mental slavery,
None but ourselves can free our minds.”
Redemption Song; the song was inspired by a speech by Marcus Garvey in Nova Scotia in October 1937, published in his Black Man magazine, Vol. 3, no. 10 (July 1938), pp. 7-11:
Uprising (1979)
Variant: None but ourselves can free our minds.
Context: Emancipate yourself from mental slavery,
None but ourselves can free our minds.
Have no fear for atomic energy,
'Cause none of them can stop the time.

“Learning is the only thing the mind never exhausts, never fears, and never regrets.”

“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.

“The high-minded man must care more for the truth than for what people think.”

“Great minds are always feared by lesser minds.”
Source: The Lost Symbol

“To a mind that is still, the entire universe surrenders.”

§ 1.33
Yoga Sutras of Patañjali
Source: The Yoga Sutras of Patanjali

Source: The Habit of Being: Letters of Flannery O'Connor
“Sometimes, being true to yourself means changing your mind. Self changes, and you follow.”
Source: The Perpetual Calendar of Inspiration

“Man is above all else mind, consciousness -- that is, he is a product of history, not of nature.”

“I usually make up my mind about a man in ten seconds, and I very rarely change it.”

Source: Immortal Diamond: The Search for Our True Self

“Classes will dull your mind, destroy the potential for authentic creativity.”

Source: Nan-Hua-Ch'en-Ching, or, the Treatise of the transcendent master from Nan-Hua

“The powers of the mind are like the rays of the sun when they are concentrated they illumine.”
Pearls of Wisdom

Source: Light on Life: The Yoga Journey to Wholeness, Inner Peace, and Ultimate Freedom, p. 59-60

“If you've got them by the balls, their hearts and minds will follow.”

“I didn't lose my mind,
it was mine to give away”

“I mean, I have the feeling that something in my mind is poisoning everything else.”

Modernized rendition: I had reasoned this out in my mind; there was one of two things I had a right to, liberty, or death; if I could not have one, I would have the other; for no man should take me alive; I should fight for my liberty as long as my strength lasted, and when the time came for me to go, the Lord would let them take me.
The phrase "" is a slogan made famous during the independence struggle of several countries.
1880s, Harriet, The Moses of Her People (1886)
Variant: There was one of two things I had a right to: liberty or death. If I could not have one, I would take the other, for no man should take me alive. I should fight for liberty as long as my strength lasted.
Context: I had reasoned dis out in my mind; there was one of two things I had a right to, liberty, or death; if I could not have one, I would have de oder; for no man should take me alive; I should fight for my liberty as long as my strength lasted, and when de time came for me to go, de Lord would let dem take me.

Source: J.M.W. Turner

“Our only limitations are those we set up in our own minds”
Variant: The only limitation is that which one sets up in one's own mind.
Source: Think and Grow Rich: The Landmark Bestseller - Now Revised and Updated for the 21st Century

“Those who mind don't matter, and those who matter don't mind.”
Bernard Baruch in response to a question by Igor Cassini as to how he handled the seating arrangements at his dinner parties, as quoted in Shake Well Before Using: A New Collection of Impressions and Anecdotes Mostly Humorous (1948) by Bennett Cerf, p. 249; the full response was "I never bother about that. Those who matter don't mind, and those who mind don't matter." This anecdote is also quoted online at Chiasmus.com http://www.chiasmus.com/archive/msg00241.html. It has also become part of a larger expression, which has been commonly attributed to Dr. Seuss, even in print, but without citation of a specific work: "Be who you are and say what you feel, because those who mind don't matter and those who matter don't mind."
Misattributed
Variant: Be who you are and say what you feel because those who mind don't matter and those who matter don't mind.

Interview on Charlie Rose https://archive.org/details/WHUT_20100614_130000_Charlie_Rose (2000)

“Reading is to the mind, what exercise is to the body.”
No. 147.
The Tatler (1711–1714)
Variant: A good conscience is to the soul what health is to the body
Context: Reading is to the mind, what exercise is to the body. As by the one, health is preserved, strengthened, and invigorated: by the other, virtue (which is the health of the mind) is kept alive, cherished, and confirmed.

“Religion is the impotence of the human mind to deal with occurrences it cannot understand.”

“As you sow in your subconscious mind, so shall you reap in your body and environment.”
Source: The Power of Your Subconscious Mind -

“The only real elegance is in the mind; if you've got that, the rest really comes from it.”

“What is troubling us is the tendency to believe that the mind is like a little man within.”
Remarks to John Wisdom, quoted in Zen and the Work of WIttgenstein by Paul Weinpaul in The Chicago Review Vol. 12, (1958), p. 70
Attributed from posthumous publications

Source: Light on Life: The Yoga Journey to Wholeness, Inner Peace, and Ultimate Freedom, p. 28
Source: Light on Yoga
Context: Health is not to be mistaken for mere existence. It is the balance of the body, mind and self... there rests the mind. If the breath scatters, the mind wanders. If mind wanders, the breath scatters. So still the breath to still the mind. Mind is the king.

“Your mind need not be controlled; your mind needs to be liberated.”
Source: Mind is your Business
Source: Marked

My Inventions (1919)
Source: My Inventions: The Autobiography of Nikola Tesla
Context: The moment one constructs a device to carry into practice a crude idea, he finds himself unavoidably engrossed with the details of the apparatus. As he goes on improving and reconstructing, his force of concentration diminishes and he loses sight of the great underlying principle.… I do not rush into actual work. When I get an idea, I start at once building it up in my imagination. I change the construction, make improvements and operate the device in my mind. It is absolutely immaterial to me whether I run my turbine in thought or test it in my shop. I even note if it is out of balance.

“Is there no way out of the mind?”
Variant: Is there no way out of the mind?

“Miranda doesn't dream, she simply rests. When Miranda's eyes are at ease, her mind is at peace.”
Source: Simultan: Erzählungen

Source: You Can Change the World (2003), p. 86.

Upon winning his eighth straight Gold medal and having set his eighth straight Olympic record, as well as his seventh world record, in his eight events in the 2008 Olympic Games, 17 August 2008. (Source: [Phelps wins historic eighth gold medal, CNN, http://edition.cnn.com/2008/SPORT/08/17/phelps.history.eight.golds/])

The Living Testament: The Essential Writings of Christianity Since the Bible (1985), p. 66.
From St. Athanasius' Life of St. Antony

From Cosmic Religion: with Other Opinions and Aphorisms (1931), Albert Einstein, pub. Covici-Friede. Quoted in The Expanded Quotable Einstein, Princeton University Press; 2nd edition (May 30, 2000); Page 208, ISBN 0691070210
1930s

Attributed to Watson in: Georg Blair, Sandy Meadows (1996) A Real-Life Guide to Organizational Change. p. 117.

American "Civilization" (from "Civilta Americana") http://lkwdpl.org/wildideas/mysticalgeography.html

“Mind is a flexible mirror, adjust it, to see a better world.”
Meditation:Insights and Inspirations (2010) https://books.google.com/books?id=s2ctBgAAQBAJ,