“There is no doubt that right-hemisphere intuitive thinking may perceive patterns and connections too difficult for the left hemisphere; but it may also detect patterns where none exist. Skeptical and critical thinking is not a hallmark of the right hemisphere. And unalloyed right-hemisphere doctrines, particularly when they are invented during new and trying circumstances, may be erroneous or paranoid.”

— Carl Sagan

Source: The Dragons of Eden (1977), Chapter 7, “Lovers and Madmen” (p. 189)

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Carl Sagan 365

American astrophysicist, cosmologist, author and science ed… 1934–1996

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“There is no way to tell whether the patterns extracted by the right hemisphere are real or imagined without subjecting them to left-hemisphere scrutiny. On the other hand, mere critical thinking, without creative and intuitive insights, without the search for new patterns, is sterile and doomed. To solve complex problems in changing circumstances requires the activity of both cerebral hemispheres: the path to the future lies through the corpus callosum.”

Carl Sagan (1934–1996) American astrophysicist, cosmologist, author and science educator

Source: The Dragons of Eden (1977), Chapter 7, “Lovers and Madmen” (pp. 190-191)

“Left hemisphere industrialism has blinded the Chinese to the effects of our alphabet: pattern recognition is in the right hemisphere.”

Marshall McLuhan (1911–1980) Canadian educator, philosopher, and scholar-- a professor of English literature, a literary critic, and a …

Source: 1980s, Laws of Media: The New Science (with Eric McLuhan) (1988), p. 81

“When the brain is whole, the unified consciousness of the left and right hemispheres adds up to more than the individual properties of the separate hemispheres.”

Roger Wolcott Sperry (1913–1994) American neuroscientist

New Mindset on Consciousness (1987)

“Cultural dominance by either the left or the right hemisphere is largely dependent upon environmental factors.”

Marshall McLuhan (1911–1980) Canadian educator, philosopher, and scholar-- a professor of English literature, a literary critic, and a …

Source: 1980s, Laws of Media: The New Science (with Eric McLuhan) (1988), p. 72

“With few exceptions, the bulk of the collected lesion evidence up through the 1950s into the early '60s converged to support the picture of a leading, more highly evolved and intellectual left hemisphere and a relatively retarded right hemisphere that by contrast, in the typical righthander brain, is not only mute and agraphic but also dyslexic, word-deaf and apraxic, and lacking generally in higher cognitive function.”

Roger Wolcott Sperry (1913–1994) American neuroscientist

Nobel lecture (1981)

“The visual power of the phonetic alphabet is the translate other languages into itself is part of its power to invade right hemisphere (oral) cultures.”

Marshall McLuhan (1911–1980) Canadian educator, philosopher, and scholar-- a professor of English literature, a literary critic, and a …

Source: 1980s, Laws of Media: The New Science (with Eric McLuhan) (1988), p. 74

“The next phase of the work was when Joseph LeDoux and I came up with the idea of the interpreter. Twenty-five years into studying these patients we finally got around to asking the patients, "Why did you do that?" after they had a response with the left hand that was being governed by the separated, silent, speechless right hemisphere. We began to understand that the left hemisphere "made up" a story as to why the patient did what he/she did, and in that moment we began to see the cardinal feature of the left hemisphere: the ability to interpret actions generated outside its realm of conscious awareness.”

Michael S. Gazzaniga (1939) American neuroscientist

“Our goal is not victory of might but the vindication of right — not peace at the expense of freedom, but both peace and freedom, here in this hemisphere and, we hope, around the world.”

John F. Kennedy (1917–1963) 35th president of the United States of America

1962, Cuban Missile Crisis speech
Context: The path we have chosen for the present is full of hazards, as all paths are; but it is one of the most consistent with our character and our courage as a nation and our commitments around the world. The cost of freedom is always high — but Americans have always paid it. And one path we shall never choose, and this is the path of surrender or submission. Our goal is not victory of might but the vindication of right — not peace at the expense of freedom, but both peace and freedom, here in this hemisphere and, we hope, around the world. God willing, that goal will be achieved. Thank you, and good night.

“Give her the continent and she wanted the hemisphere.”

Anthony Kiedis book Scar Tissue

Source: Scar Tissue

“Earlier contentions that the right hemisphere is not even conscious largely gave way by the mid seventies to an intermediate position conceding that the mute hemisphere may be conscious at some lower elemental levels, but claiming that it lacks the higher, reflective, self-conscious kind of inner awareness that is special to the human mind and is needed, so it is said, to qualify the right conscious system as a "self' or "person". Self awareness in particular is reported, on the basis of mirror tests mainly, to be a predominantly human attribute and is rated by developmental as well as by evolutionary standards to be a highly advanced phase of conscious awareness.”

Roger Wolcott Sperry (1913–1994) American neuroscientist

Nobel lecture (1981)

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Carl Sagan 365

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