This, he thought, could not be true, because the "Origin of Species" is one long argument from the beginning to the end, and has convinced many able men.
Writing in the last year of his life, he expressed the opinion that in two or three respects his mind had changed during the preceding twenty or thirty years.
He asserted, also, that his power to follow a long and purely abstract train of thought was very limited, for which reason he felt certain that he never could have succeeded with mathematics.
On the other hand, he did not accept as well founded the charge made by some of his critics that, while he was a good observer, he had no power of reasoning.
So poor in one sense was it that he never could remember for more than a few days a single date or a line of poetry.
He points out that he always experienced much difficulty in expressing himself clearly and concisely, but he believes that this very difficulty may have had the compensating advantage of forcing him to think long and intently about every sentence, and thus enabling him to detect errors in reasoning and in his own observations.
He adds humbly that perhaps he was "superior to the common run of men in noticing things which easily escape attention, and in observing them carefully".
Darwin was convinced that the loss of these tastes was not only a loss of happiness, but might possibly be injurious to the intellect, and more probably to the moral character.
Together with another two scientists, he is publishing a paper which not only suggests that one group of humanity is more intelligent than the others, but explains the process that has brought this about.
His argument is that the unusual history of these people has subjected them to unique evolutionary pressures that have resulted in this paradoxical state of affairs.
This group generally do well in IQ test, scoring 12-15 points above the mean value of 100, and have contributed disproportionately to the intellectual and cultural life of the West, as the careers of their elites, including several world-renowned scientists, affirm.
The idea that some groups of people may be more intelligent than others is one of those hypotheses that dare not speak its name.
He helped popularize the idea that some diseases not previously thought to have a bacterial cause were actually infections, which aroused much controversy when it was first suggested.
Researchers in the late 1960s discovered that humans are born with the capacity to approach challenges in four primary ways: analytically, procedurally, relationally (or collaboratively) and innovatively.
At the end of adolescence, however, the brain shuts down half of that capacity, preserving only those modes of thought that have seemed most valuable during the first decade or so of life.
But brain researchers have discovered that when we consciously develop new habits, we create parallel synaptic paths, and even entirely new brain cells, that can jump our trains of thought onto new, innovative tracks.
Instead, the new habits we deliberately press into ourselves create parallel pathways that can bypass those old roads.
The current emphasis on standard testing highlights analysis and procedure, meaning that few of us inherently use innovative and collaborative modes of thought.
But don't bother trying to kill off old habits; once those ruts of procedure are worn into the brain, they're there to stay.
Only when humanity began to get its food in a more productive way was there time for other things.
This increasingly high level of education is probably a necessary, but not a sufficient, condition for the complex political systems required by advanced economic performance.
More recently, while examining housing construction, the researchers discovered that illiterate, non-English-speaking Mexican workers in Houston, Texas, consistently met best-practice labor productivity standards despite the complexity of the building industry's work.
Not long ago, with the country entering a recessing and Japan at its pre-bubble peak, the U.S. workforce was derided as poorly educated and one of the primary causes of the poor U.S. economic performance.
Progress in both areas is undoubtedly necessary for the social, political and intellectual development of these and all other societies; however, the conventional view that education should be one of the very highest priorities for promoting rapid economic development in poor countries is wrong.
The findings of a research institution have consistently shown that workers in all countries can be trained on the job to achieve radically higher productivity and, as a result, radically higher standards of living.
Yet the research revealed that the U.S. factories of Honda, Nissan, and Toyota achieved about 95 percent of the productivity of their Japanese counterparts — a result of the training that U.S. workers received on the job.
Sexual confusion, economic frustrations , and religious hope — all came together in a decisive moment when he opened the Bible, told his father that the first line he saw would settle his fate, and read the magical words: "come out from among them, touch no unclean thing, and I will be your God and you shall be my people."
A tailor named John Dane, who emigrated in the late 1630s, left an account of his reasons for leaving England that is filled with signs.
Meanwhile, many settlers had slighter religious commitments than Dane's, as one clergyman learned in confronting folk along the coast who mocked that they had not come to the New World for religion .
Besides the ninety or so learned ministers who came to Massachusetts church in the decade after 1629,There were political leaders like John Winthrop, an educated gentleman, lawyer, and official of the Crown before he journeyed to Boston.