On the question of the 'origin of species' Mr. Haughton enlarges considerably; but his chief arguments are reduced to the setting-up of 'three unwarrantable assumptions,' which he imputes to the Lamarckians and Darwinians, and then, to use his own words, 'brings to the ground like a child's house of cards.' The first of these is 'the indefinite variation of species continuously in the one direction.' Now this is certainly never assumed by Mr. Darwin, whose argument is mainly grounded on the fact that variations occur in every direction. This is so obvious that it hardly needs insisting on. In every large family there is almost always one child taller, one darker, one thinner than the rest; one will have a larger nose, another a larger eye: they vary morally as well; some are more poetical, others more morose; one has a genius for numbers, another for painting. It is the same in animals: the puppies, or kittens, or rabbits of one litter differ in many ways from each other - in colour, in size, in disposition; so that, though they do not 'vary continuously in one direction,' they do vary continuously in many directions; and thus there is always material for natural selection to act upon in some direction that may be advantageous. [...] I will only, in conclusion, quote from it a short paragraph which contains an important truth, but which may very fairly be applied in other quarters than those for which the author intended it: - 'No progress in natural science is possible as long as men will take their rude guesses at truth for facts, and substitute the fancies of their imagination for the sober rules of reasoning.'
About this quote
- What does it mean?
- Criticizing Haughton’s claim that species vary only in one direction, noting Darwin’s view that variation occurs in all directions, like differences among siblings and traits.
- In plain terms
- Species vary in many directions, not just one, contrary to Haughton’s claim.
- What can you take from it?
- Evolutionary variation is multidirectional, supporting Darwin’s perspective.
Where it applies
Putting it to work
Questions to consider
- What evidence shows multidirectional variation?
- How does this affect evolutionary models?
Another view
The argument simplifies complex genetic mechanisms into simple directionality.
More from Alfred Russel Wallace
I think I have fairly heard and fairly weighed the evidence on both sides, and I remain an utter disbeliever in almost all that you consider the most sacred tr…
Permalink to quote #4 While upon the subject of plants I may here mention a few of the more striking vegetable productions of Borneo. The wonderful Pitcher-plants, forming the genus…
Permalink to quote #6 The powerful retractile talons of the falcon- and the cat-tribes have not been produced or increased by the volition of those animals; but among the different …
Permalink to quote #3
Related quotes
God made Man, but he used a monkey to do it
DevoDevo quote #1 ... the tendency in nature to form wholes that are greater than the sum of the parts through creative evolution ...
Jan Christiaan SmutsJan Christiaan Smuts quote #2 Biologists must constantly keep in mind that what they see was not designed, but rather evolved. It might be thought, therefore, that evolutionary arguments wo…
Francis CrickFrancis Crick quote #3