Man is the result of a purposeless and natural process that did not have him in mind — George Gaylord Simpson Copy Share Image
It is now firmly established that ontogeny does not repeat phylogeny — George Gaylord Simpson Copy Share Image
Almost all paleontologists recognize that the discovery of a complete transition is in any case unlikely. — George Gaylord Simpson Copy Share Image
Splitting and gradual divergence of genera is exemplified very well and in a large variety of organisms. — George Gaylord Simpson Copy Share Image
The opposition to teaching evolution is, of course, almost always given a religious reason. That may usually be its real basis, but… — George Gaylord Simpson Copy Share Image
If a sect does officially insist that its structure of belief demands that evolution be false, then no compromise is possible. An… — George Gaylord Simpson Copy Share Image
The fact -- not theory -- that evolution has occurred and the Darwinian theory as to how it occurred have become so… — George Gaylord Simpson Copy Share Image
It is inherent in any definition of science that statements that cannot be checked by observation are not really saying anything or… — George Gaylord Simpson Copy Share Image
Species evolve exactly as if they were adapting as best they could to a changing world, and not at all as if… — George Gaylord Simpson Copy Share Image
It remains true, as every paleontologist knows, that most new species, genera, and families, and that nearly all categories above the level… — George Gaylord Simpson Copy Share Image
...the argument from absence of transitional types boils down to the striking fact that such types are always lacking unless they have… — George Gaylord Simpson Copy Share Image
Certainly paleontologists have found samples of an extremely small fraction, only, of the earth's extinct species, and even for groups that are… — George Gaylord Simpson Copy Share Image
The meaning that we are seeking in evolution is its meaning to us, to man. The ethics of evolution must be human… — George Gaylord Simpson Copy Share Image
Man has risen, not fallen. He can choose to develop his capacities as the highest animal and to try to rise still… — George Gaylord Simpson Copy Share Image
The fact -- not theory -- that evolution has occurred and the Darwinian theory as to how it occurred have become so confused in… — George Gaylord Simpson Copy Share
“The passion for naming things is an odd human trait. It is strange that men always feel so much more at ease when they… — George Gaylord Simpson Copy Share
A rill in a barnyard and the Grand Canyon represent, in the main, stages of valley erosion that began some millions of years apart. — George Gaylord Simpson Copy Share
If a sect does officially insist that its structure of belief demands that evolution be false, then no compromise is possible. An honest and… — George Gaylord Simpson Copy Share
I have a debt, a loyalty to the museum; the best place for me to do what I wanted to do. — George Gaylord Simpson Copy Share
Man is the result of a purposeless and natural process that did not have him in mind — George Gaylord Simpson Copy Share
Man is the result of a purposeless and materialistic process that did not have him in mind. He was not planned. He is a… — George Gaylord Simpson Copy Share
I don't know where to put whales. I'm sticking them here, but I don't have any reason for it. — George Gaylord Simpson Copy Share
Almost all paleontologists recognize that the discovery of a complete transition is in any case unlikely. — George Gaylord Simpson Copy Share
To put it crudely but graphically, the monkey who did not have a realistic perception of the tree branch he jumped for was soon… — George Gaylord Simpson Copy Share
Man has risen, not fallen. He can choose to develop his capacities as the highest animal and to try to rise still farther, or… — George Gaylord Simpson Copy Share
...the argument from absence of transitional types boils down to the striking fact that such types are always lacking unless they have been found. — George Gaylord Simpson Copy Share
It remains true, as every paleontologist knows, that most new species, genera, and families, and that nearly all categories above the level of families,… — George Gaylord Simpson Copy Share
The search for historical laws is, I maintain, mistaken in principle. — George Gaylord Simpson Copy Share
Certainly paleontologists have found samples of an extremely small fraction, only, of the earth's extinct species, and even for groups that are most readily… — George Gaylord Simpson Copy Share
