Evolution Quotes - page 3
We have repeatedly observed that while any whole is evolving, there is always going on an evolution of the parts into which it divides itself; but we have not observed that this equally holds of the totality of things, which is made up of parts within parts from the greatest down to the smallest.
Herbert Spencer
For Immanuel Kant, the term anthropology embraced all the human sciences, and laid the foundation of familiar knowledge we need, to build solidly grounded ideas about the moral and political demands of human life. Margaret Mead saw mid-twentieth-century anthropology as engaged in a project no less ambitious than Kant's own, and her Terry Lectures on Continuities in Cultural Evolution provide an excellent point to enter into her reflections.
Margaret Mead
The vigorous branching of life's tree, and not the accumulating valor of mythical marches to progress, lies behind the persistence and expansion of organic diversity in our tough and constantly stressful world. And if we do not grasp the fundamental nature of branching as the key to life's passage across the geological stage, we will never understand evolution aright.
Stephen Jay Gould
Throughout his last half-dozen books, for example, Arthur Koestler has been conducting a campaign against his own misunderstanding of Darwinism. He hopes to find some ordering force, constraining evolution to certain directions and overriding the influence of natural selection. [...] Darwinism is not the theory of capricious change that Koestler imagines. Random variation may be the raw material of change, but natural selection builds good design by rejecting most variants while accepting and accumulating the few that improve adaptation to local environments.
Stephen Jay Gould
Iconography becomes even more revealing when processes or concepts, rather than objects, must be depicted-for the constraint of a definite "thing” cedes directly to the imagination. How can we draw "evolution” or "social organization,” not to mention the more mundane "digestion” or "self-interest,” without portraying more of a mental structure than a physical reality? If we wish to trace the history of ideas, iconography becomes a candid camera trained upon the scholar's mind.
Stephen Jay Gould
A complete theory of evolution must acknowledge a balance between "external” forces of environment imposing selection for local adaptation and "internal” forces representing constraints of inheritance and development. Vavilov placed too much emphasis on internal constraints and downgraded the power of selection. But Western Darwinians have erred equally in practically ignoring (while acknowledging in theory) the limits placed on selection by structure and development-what Vavilov and the older biologists would have called "laws of form.”.
Stephen Jay Gould
No one supposed that dinoflagellates might actively kill fish as an evolved response for their own specific advantage, including a potential nutritional benefit for the algal cells. And yet the dinoflagellates do seem to be killing and eating fishes in a manner suggesting active evolution for this most peculiar reversal.
Stephen Jay Gould
Each worldview was a cultural product, but evolution is true and separate creation is not. [...] Worldviews are social constructions, and they channel the search for facts. But facts are found and knowledge progresses, however fitfully. Fact and theory are intertwined, and all great scientists understand the interaction.
Stephen Jay Gould
We are inescapably the result of a long heritage of learning, adaptation, mutation and evolution, the product of a history which predates our birth as a biological species and stretches back over many thousand millennia... Going further back, we share a common ancestry with our fellow primates; and going still further back, we share a common ancestry with all other living creatures and plants down to the simplest microbe. The further back we go, the greater the difference from external appearances and behavior patterns which we observe today.
Fred Hoyle