Ernst Mayr

Evolution as such is no longer a theory for a modern author. It is as much a fact as that read more

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 history of science knows scores of instances where an investigator was in the possession of all the important facts read more

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.

...anyone who writes about "Darwin's theory of evolution" in the singular, without segregating the theories of gradual evolution, common descent, read more

...anyone who writes about "Darwin's theory of evolution" in the singular, without segregating the theories of gradual evolution, common descent, speciation, and the mechanism of natural selection, will be quite unable to discuss the subject competently.

To take an unequivocal stand, it seems to me, is of greater heuristic value and far more likely to stimulate read more

To take an unequivocal stand, it seems to me, is of greater heuristic value and far more likely to stimulate constructive criticism than to evade the issue.

Scientific progress consists in the development of new concepts.

Scientific progress consists in the development of new concepts.