Well, evolution is a theory. It is also a fact. And facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts do not go away while scientists debate rival theories for explaining them. Einstein's theory of gravitation replaced Newton's, but apples did not suspend themselves in mid-air pending the outcome. And human beings evolved from apelike ancestors whether they did so by Darwin's proposed mechanism or by some other, yet to be discovered. [...] Evolutionists make no claim for perpetual truth, though creationists often do (and then attack us for a style of argument that they themselves favor). In science, "fact” can only mean "confirmed to such a degree that it would be perverse to withhold provisional assent.”. (Stephen Jay Gould)

Well, evolution is a theory. It is also a fact. And facts and theories are different things, not rungs in a hierarchy of increasing certainty. Facts are the world's data. Theories are structures of ideas that explain and interpret facts. Facts do not go away while scientists debate rival theories for explaining them. Einstein's theory of gravitation replaced Newton's, but apples did not suspend themselves in mid-air pending the outcome. And human beings evolved from apelike ancestors whether they did so by Darwin's proposed mechanism or by some other, yet to be discovered. [...] Evolutionists make no claim for perpetual truth, though creationists often do (and then attack us for a style of argument that they themselves favor). In science, "fact” can only mean "confirmed to such a degree that it would be perverse to withhold provisional assent.”.

Stephen Jay Gould

Related topics

argument assent attack certainty claim datum debate degree different evolution explaining fact favor gravitation hierarchy human increasing mean mechanism outcome perpetual perverse provisional rival science style suspend theory truth well while yet things apples facts mid-air

Related quotes

The Court's justification for consulting its own notions rather than following the original meaning of the Constitution, as I would, apparently is based on the belief of the majority of the Court that for this Court to be bound by the original meaning of the Constitution is an intolerable and debilitating evil; that our Constitution should not be 'shackled to the political theory of a particular era,' and that to save the country from the original Constitution the Court must have constant power to renew it and keep it abreast of this Court's more enlightened theories of what is best for our society. It seems to me that this is an attack not only on the great value of our Constitution itself but also on the concept of a written constitution which is to survive through the years as originally written unless changed through the amendment process which the Framers wisely provided.
Hugo Black
[A rival theory that has to be better than the dominant "90 percent explanation” cannot go wrong very often and still stay in the contest. For the challenger of a 50 percent incumbent, some shortcomings are not that fatal. This comparative situation has to be remembered as argued by James Burnham:]... we must keep in mind an obvious principle of scientific method. To disprove the theory, it is not enough to show that it is not 100% certain,that difficulties confront it, and certain evidence seems to be against it. It must be further shown that it is less certain than alternative theories covering the same subject matter, that there are in its case more difficulties, more negative evidence than in the case of at least one alternative theory. No theory about what actually happens and will happen is ever ‘certain'.
James Burnham
In these pages, I continue the struggle to which my whole life is devoted. Describing, I also characterize and evaluate; narrating, I also defend myself, and more often attack. It seems to me that this is the only method of making an autobiography objective in a higher sense, that is, of making it the most adequate expression of personality, conditions, and epoch. Objectivity is not the pretended indifference with which confirmed hypocrisy, in speaking of friends and enemies, suggests indirectly to the reader what it finds inconvenient to state directly. Objectivity of this sort is nothing but a conventional trick. I do not need it. Since I have submitted to the necessity of writing about myself - nobody has as yet succeeded in writing an autobiography without writing about himself - I can have no reason to hide my sympathies or antipathies, my loves or my hates.
Leon Trotsky
As a graduate student at Yale, I studied the whole of Christian theology but focused my attention on the Darwinian controversies. I wanted to get to the root of the conflict between Darwinian evolution and Christian doctrine. In the course of my research I learned (to my surprise) that biblical chronology played almost no role in the 19th- century controversies, since most theologians had already accepted geological evidence for the age of the earth and re-interpreted the days in Genesis as long periods of time. Instead, the central issue was design. God created the cosmos with a plan in mind. This affirmation is among the most basic in all of Christianity (and other theistic religions as well, including Unificationism). And that plan included human beings as the final outcome of the creative process: we are created in the image of God.
Jonathan Wells
We know, since the theory of relativity at least, that empirical sciences are to some degree free in defining dynamical concepts or even in assuming laws, and that only a system as a whole which includes concepts, coordinating definitions, and laws can be said to be either true or false, to be adequate or inadequate to empirical facts. This "freedom," however, is a somewhat doubtful gift. The manifold of possibilities implies uncertainty, and such uncertainty can become rather painful in a science as young as psychology, where nearly all concepts are open and unsettled. As psychology approaches the state of a logically sound science, definitions cease to be an arbitrary matter. They become far-reaching decisions which presuppose the mastering of the conceptual problems but which have to be guided entirely by the objective facts.
Kurt Lewin