Source: Pride and Prejudice
“Another possible mode of making rapid evolutionary jumps is by hybridisation.”
—
J. B. S. Haldane
,
book
The Causes of Evolution
Source: The Causes of Evolution (1932), Ch. IV Natural Selection, pp. 104-106.
Context: Where natural selection slackens, new forms may arise which would not survive under more rigid competition, and many ultimately hardy combinations will thus have a chance of arising.... Thus the distinction between the principal mammalian orders seems to have arisen during an orgy of variation in the early Eocene which followed the doom of the great reptiles... Since that date mammalian evolution has been a slower affair, largely a progressive improvement of the types originally laid down in the Eocene.
Another possible mode of making rapid evolutionary jumps is by hybridisation.... hybridisation (where the hybrids are fertile) usually causes an epidemic of variation in the second generation which may include new and valuable types which could not have arisen within a species by slower evolution.
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J. B. S. Haldane 32
Geneticist and evolutionary biologist 1892–1964Related quotes
Gravity's Rainbow (1973)
Context: No, as none of these, but instead a point in space, a point hung precise as the point where burning must end, never launched, never to fall. And what is the specific shape whose center of gravity is the Brennschluss Point? Don't jump at an infinite number of possible shapes. There's only one. It is most likely an interface between one order of things and another. There's a Brennschluss point for every firing site. They still hang up there, all of them, a constellation waiting to have a 13th sign of the Zodiac named for it...
Daniel Abraham
(1969) speculative fiction writer from the United States
Source: Nemesis Games (2015), Chapter 31 (p. 325)
Michael Halliday
(1925–2018) Australian linguist
Source: 1970s and later, Learning How to Mean--Explorations in the Development of Language, 1975, p. 140 cited in: Clare Painter (2005) Learning Through Language In Early Childhood. p. 64.
“When jumping is the sole option, you jump, and try to make it work.”
Brandon Mull
(1974) American fiction writer
Source: Grip of the Shadow Plague
“None of these are permissible modes of transition from one situation to another.”
Source: Anarchy, State, and Utopia (1974), Ch. 7 : Distributive Justice, Section I, The Entitlement Theory, p. 152
Context: Some people steal from others, or defraud them, or enslave them, seizing their product and preventing them from living as they choose, or forcibly exclude others from competing in exchanges. None of these are permissible modes of transition from one situation to another.
Ray Bradbury
(1920–2012) American writer
Playboy interview (1996)
Context: Here a human without a car is a samurai without his sword. I would replace cars wherever possible with buses, monorails, rapid trains — whatever is takes to make pedestrians the center of our society again, and cities worthwhile enough for pedestrians to live in. I don't care what people do with their cars, as long as they give them up three quarters of the time — roughly the amount of time people spend every week superfluously driving places they don't want to go to visit people who don't want to see them.
Alexander Bryan Johnson
(1786–1867) United States philosopher and banker
The Philosophical Emperor, a Political Experiment, or, The Progress of a False Position: (1841)
Context: To jump occasionally into the pit is common to all who visit the mountain, and to some who keep on the plain; but the madness to which I have alluded consists in rapid alternations from the mountain to the pit, annoying all persons who are forced, by friendship or consanguinity, to consort with the unfortunate maniacs. To remain permanently either on the pinnacle or in the abyss is deemed a species of the same disorder, though not so common.
appear on the display.
Source: Libraries of the future, 1965, p. 100 as cited in: Recent advances in display media (1982). Vol. 3, p. 177.