Unfortunately, in the field of evolution most explanations are not good. As a matter of fact, they hardly qualify as explanations at… — Norman Macbeth Copy Share Image
Progress is achieved by exchanging our theories for new ones which go further than the old, until we find one based on… — Claude Bernard Copy Share Image
On the threshold of the moral world we meet the idea of Freedom, 'one of the weightiest concepts man has ever formed,'… — Havelock Ellis Copy Share Image
The role of science is to be systematic, to be accurate, to be orderly, but it certainly is not to imply that… — Edwin Land Copy Share Image
I have steadily endeavoured to keep my mind free so as to give up any hypothesis, however much beloved (and I cannot… — Charles Darwin Copy Share Image
If by religion we are to understand sectarian dogmas, in which no two of them agree, then your exclamation on that hypothesis… — Thomas Jefferson Copy Share Image
Evolutionary game theory was originally developed as an alternative to the hypothesis of group selection; now it is clear that game theory… — Elliott Sober Copy Share Image
The facts which have caused us to believe in the dominance of the pleasure principle in mental life also find expression in… — Sigmund Freud Copy Share Image
If it were possible to transfer the methods of physical or of biological science directly to the study of man, the transfer… — Leonard Bloomfield Copy Share Image
The knowledge of Natural-History, being Observation of Matters of Fact, is more certain than most others, and in my slender Opinion, less… — Hans Sloane Copy Share Image
However the machine would permit us to test the hypothesis for any special value of n. We could carry out such tests… — Alfred Tarski Copy Share Image
Keynes was a great economist. In every discipline, progress comes from people who make hypotheses, most of which turn out to be… — Milton Friedman Copy Share Image
Darwin repeatedly used the hypothesis of common ancestry as a platform on which to build his various ideas about testing hypotheses concerning… — Elliott Sober Copy Share Image
People who live in states have as a rule never experienced the state of nature and vice-versa, and have no practical possibility… — Anthony de Jasay Copy Share Image
Even mistaken hypotheses and theories are of use in leading to discoveries. This remark is true in all the sciences. The alchemists… — Claude Bernard Copy Share Image
The purpose of scientific method is to select a single truth from among many hypothetical truths. That, more than anything else, is… — Robert M. Pirsig Copy Share Image
Every great advance in science has issued from a new audacity of imagination. What are now working conceptions, employed as a matter… — John Dewey Copy Share Image
If we consistently act on the optimistic hypothesis, this hypothesis will tend to be realised; whilst by acting on the pessimistic hypothesis… — John Maynard Keynes Copy Share Image
Hypotheses are the scaffolds which are erected in front of a building and removedd when the building is completed. They are indispensable… — Johann Wolfgang von Goethe Copy Share Image
Kant, as we all know, compared moral law to the starry heavens, and found them both sublime. On the naturalistic hypothesis we… — Arthur Balfour Copy Share Image
There is no doubt in my mind that the literature on climate change overwhelmingly supports the hypothesis that climate change is caused… — Richard Tol Copy Share Image
World War II proved a hypothesis that Alexis de Tocqueville advanced a century before: the war-fighting potential of a democracy is at… — David Frum Copy Share Image
A hypothesis or theory is clear, decisive, and positive, but it is believed by no one but the man who created it.… — Harlow Shapley Copy Share Image
“Its all about perspective, that is how you look at things. Your own thoughts and outlook defines whether an experience, event, situation… — Stella Payton Copy Share Image
I'll suggest that the happiness hypothesis offered by Buddha and the Stoics should be amended: Happiness comes from within, and happiness comes… — Jonathan Haidt Copy Share Image
We cannot fathom the marvelous complexity of an organic being; but on the hypothesis here advanced this complexity is much increased. Each… — Charles Darwin Copy Share Image
The main Business of Natural Philosophy is to argue from Phænomena without feigning Hypotheses, and to deduce Causes from Effects till we… — Isaac Newton Copy Share Image
An idea can be tested, whereas if you have no idea, nothing can be tested and you don't understand anything. The molecule… — James D. Watson Copy Share Image
One thing that makes the adventure of working in our field particularly rewarding, especially in attempting to improve the theory, is that...… — Murray Gell-Mann Copy Share Image
Many people say I believe aliens built the pyramids. I don't. In fact I'm not a supporter of the 'ancient alien' hypothesis… — Graham Hancock Copy Share Image
Many 'hard' scientists regard the term 'social science' as an oxymoron. Science means hypotheses you can test, and prove or disprove. Social… — Michael Kinsley Copy Share Image
Too much openness and you accept every notion, idea, and hypothesis-which is tantamount to knowing nothing. Too much skepticism-especially rejection of new… — Carl Sagan Copy Share Image
There are two possible outcomes: if the result confirms the hypothesis, then you've made a measurement. If the result is contrary to… — Enrico Fermi Copy Share Image
From the standpoint of observation, then, we must regard it as a highly probable hypothesis that the beginnings of the mental life… — Wilhelm Wundt Copy Share Image
Our working hypothesis is that the status of knowledge is altered as societies enter what is known as the postindustrial age and… — Jean-Francois Lyotard Copy Share Image
When I try to outline the history of ethical life, it's sometimes possible to find evidence for a hypothesis about how important… — Philip Kitcher Copy Share Image
Current organisms have a higher probability of sharing a single code if the common ancestry hypothesis is true than they'd have if… — Elliott Sober Copy Share Image
In science, each new result, sometimes quite surprising, heralds a step forward and allows one to discard some hypotheses, even though one… — Stanley B. Prusiner Copy Share Image
To construct a scientific theory from the data and to be able to recognize that it is a reasonable theory is possible… — Noam Chomsky Copy Share Image
A failed structure provides a counterexample to a hypothesis and shows us incontrovertibly what cannot be done, while a structure that stands… — Henry Petroski Copy Share Image
