Why has not anyone seen that fossils alone gave birth to a theory about the formation of the earth, that without them, no one would have ever dreamed that there were successive epochs in the formation of the globe. Georges Cuvier
Why has not anyone seen that fossils alone gave birth to a theory about the formation of the earth, that without them, no one would have ever dreamed that there were successive epochs in the formation of the globe.
The fact -- not theory -- that evolution has occurred and the Darwinian theory as to how it occurred have become so confused in popular opinion that the distinction must be stressed. George Gaylord Simpson
The fact -- not theory -- that evolution has occurred and the Darwinian theory as to how it occurred have become so confused in popular opinion that the distinction must be stressed.
The cry of the conductor 'Clapham Road', awakened me from my dreaming: but I spent part of the night in putting on paper at least sketches of these dream forms. This was the origin of the 'Structural Theory'. August Kekulé
The cry of the conductor 'Clapham Road', awakened me from my dreaming: but I spent part of the night in putting on paper at least sketches of these dream forms. This was the origin of the 'Structural Theory'.
I have little hesitation in saying that as a result a sickly pall now hangs over the big bang theory. As I have mentioned earlier, when a pattern of facts becomes set against a theory, experience shows that it rarely recovers. Fred Hoyle
I have little hesitation in saying that as a result a sickly pall now hangs over the big bang theory. As I have mentioned earlier, when a pattern of facts becomes set against a theory, experience shows that it rarely recovers.
Indeed, such a theory is so obvious that one wonders why it is not widely accepted as being self-evident. The reasons are psychological rather than scientific. Fred Hoyle
Indeed, such a theory is so obvious that one wonders why it is not widely accepted as being self-evident. The reasons are psychological rather than scientific.
A theory should not attempt to explain all the facts, because some of the facts are wrong. Francis Crick
A theory should not attempt to explain all the facts, because some of the facts are wrong.
Evolution as such is no longer a theory for a modern author. It is as much a fact as that the earth revolves around the sun. Ernst Mayr
Evolution as such is no longer a theory for a modern author. It is as much a fact as that the earth revolves around the sun.
The major novelty of my theory was its claim that the most rapid evolutionary change does not occur in widespread, populous species, as claimed by Most geneticists, but in small founder populations. Ernst Mayr
The major novelty of my theory was its claim that the most rapid evolutionary change does not occur in widespread, populous species, as claimed by Most geneticists, but in small founder populations.
The history of science knows scores of instances where an investigator was in the possession of all the important facts for a new theory but simply failed to ask the right questions. Ernst Mayr
The history of science knows scores of instances where an investigator was in the possession of all the important facts for a new theory but simply failed to ask the right questions.
A mathematical theory is not to be considered complete until you have made it so clear that you can explain it to the first man whom you meet on the street. David Hilbert
A mathematical theory is not to be considered complete until you have made it so clear that you can explain it to the first man whom you meet on the street.
The application of group theory to physics became one of the main branches of physics that I specialized in. Chen-Ning Yang
The application of group theory to physics became one of the main branches of physics that I specialized in.
In 1975, ... [speaking with Shiing Shen Chern], I told him I had finally learned ... the beauty of fiber-bundle theory and the profound Chern-Weil theorem. Chen-Ning Yang
In 1975, ... [speaking with Shiing Shen Chern], I told him I had finally learned ... the beauty of fiber-bundle theory and the profound Chern-Weil theorem.