"On the trip home from the Nobel ceremonies in Stockholm, prize-winning physicist Richard Feynman stopped in Queens, N.Y., and looked up his high-school records. 'My grades were not as good as I remembered,' he said, 'and my I.Q. was 124, considered just above average.' "

James Gleick. (1992). Genius: The Life and Science of Richard Feynman. New York: Pantheon.

Editor's note -- Richard Feynman's IQ of 124 was well above average for high school graduates and even college graduates. The average IQ of PhD/MD degree recipients is about 125, which is higher than 95 percent of the general population. Beyond a certain level of ability, other factors are certainly more important in determining an individual's chances of winning the Nobel Prize than IQ, not the least of which is the quality and reputation of the institution where the individual obtained his/her graduate degree and worked or taught. See Nobel Prize Winners and Universities. -- W.E.B.

"The four socially and personally most important threshold regions on the IQ scale are those that differentiate with high probability between persons who, because of their level of general mental ability, can or cannot attend a regular school (about IQ 50), can or cannot master the traditional subject matter of elementary school (about IQ 75), can or cannot succeed in the academic or college preparatory curriculum through high school (about IQ 105), can or cannot graduate from an accredited four-year college with grades that would qualify for admission to a professional or graduate school (about IQ 115). Beyond this, the IQ level becomes relatively unimportant in terms of ordinary occupational aspirations and criteria of success. That is not to say that there are not real differences between the intellectual capabilities represented by IQs of 115 and 150 or even between IQs of 150 and 180. But IQ differences in this upper part of the scale have far less personal implications than the thresholds just described and are generally of lesser importance for success in the popular sense than are certain traits of personality and character." Arthur Jensen. (1980). Bias in Mental Testing.

New York: Free Press, p. 113.

"It has been said that a 140 IQ is a "genius" score, however there is no definition, as such, in either of my psychological dictionaries about "genius." Neither is there an IQ score ranked as "genius"... Genius may be in the eye of the beholder. Furthermore, a true genius may not score particularly well on a standard group IQ test... And really, those who are what we may call a genius don't need a score to prove it."

The Question Of "Genius"

Abbie F. Salny, Ed.D., former supervisory psychologist, American Mensa

IQ tests Online and the Mensa Workout

by the International High IQ Society and Mensa International

Genius and Disability

Thomas B. Macaulay (1st Baron Macaulay), an eminent 19th Century English writer, barrister and Member of Parliament, was estimated by Cox to have had an IQ of 175; yet legend has it that he did not utter a word until around the age of 4 when he turned to a wailing baby and asked, "What ails thee, Jock?" Soon after that someone spilled hot coffee on him, and when a concerned onlooker rushed to help, he said "Thank you madam, the agony has abated!"

Albert Einstein is another genius who did not speak until a late age and was thought to have had a developmental language disability. His IQ was never tested, but had it been possible to test him when he was a young child, his IQ score might not have been very high!

Genius and Adjustment

The Story of William James Sidis



Good Will Sidis. (1998). Harvard Magazine, March Issue.

High IQ and adjustment

Grady M. Towers. (1987). The Outsiders . Gift of Fire, Issue No. 22.

(Journal of the Prometheus Society)

Highest Tested IQs in History

Universal Geniuses and Renaissance Men

The Polymath

Leonardo Da Vinci, Gottfried Wilhelm Leibniz, Johann Wolfgang von Goethe, and others.

The Autodidact

Leonardo Da Vinci, James Watt, Frank Lloyd Wright, Tado Ando and others.

Einstein's IQ