Full many a flower is born to
blush unseen,
And waste its sweetness on the
desert air.
— Thomas Gray (1716 - 1771) Elegy in a Country Churchyard.
It seems to me that there is a
great deal of ballyhoo about scientific method.
I venture to think that the people who talk most about it are the people
who do least about it. Scientific method
is what working scientists do, not what other people or even they themselves
may say about it.
— P. W. Bridgman (1882 - 1961),
Reflections of a Physicist, 1949.
— Thomas Henry Huxley, (1825 -
1895), Biogenesis and Abiogenesis; Collected Essays
viii.
— Richard Feynman, QED, Penguin Books, 1990, 8.
It is a good morning exercise
for a research scientist to discard a pet hypothesis every day before
breakfast. It keeps him young.
— Konrad Lorenz, On Aggression, Methuen University Paperback, 1967, p. 8.
Play is a means by which young
animals are trained for the responsibilities and conflicts of adult life. The higher the animal the longer is the
period of play and the more keenly it is enjoyed. There is something of Peter Pan in all of us
and in good scientists more than most.
— Sir Macfarlane Burnet, Walter and Eliza Hall Institute 1915 - 1965, Melbourne
University Press, 1971.
Louis Pasteur, portrait, Musée d'Orsay |
Preconceived ideas are like
searchlights which illumine the path of the experimenter and serve him as a
guide to interrogate nature. They become
a danger only if he transforms them into fixed ideas — this is why I should
like to see these profound words inscribed on the threshold of all the temples
of science: 'The greatest derangement of the mind is to believe something
because one wishes it to be so...'
— Louis Pasteur (1822 - 1895),
quoted by Robert S. de Ropp in The New Prometheans,
1972, p. 80.
The story is told in the University of Paris that the philosophers there once disputed among themselves as to the number of teeth in a horse's mouth. It was argued that the number could not be a multiple of three, because that would imply disrespect to the Trinity; nor could it be a multiple of seven, for God created the World in six days and rested upon the seventh. Neither the authority or Aristotle nor the ingenuity of the schoolmen could resolve the problem, but it was finally settled by a young man, who opened the mouth of a horse, and counted the teeth. The doctors of the University were not convinced by this novel and unintellectual procedure; but the opening of the horse's mouth marks the birth of the scientific method.
— Professor Eric Ashby, The Place of Biology in Australian Education, inaugural
lecture, Sydney, 1939.
To the Greeks of Aristotle's
time, and for two thousand years afterward, scientific truth was best
discovered and expressed by deducing the nature of things from a set of
self-evident premises, which accounts for Aristotle's believing that women have
fewer teeth than men, and that babies are healthier if conceived when the wind
is in the north. Aristotle was twice
married but so far as we know, it did not occur to him to ask either of his
wives if he could count her teeth. As
for his obstetric opinions, we are safe in assuming he used no questionnaires
and hid behind no curtains. Such acts
would have seemed to him both vulgar and unnecessary, for that was not the way
to ascertain the truth of things. The
language of deductive logic proved a surer road.
— Neil Postman, Amusing Ourselves to Death, Penguin Books, 1986.
The long chains of simple and
easy reasonings by means of which geometers are accustomed to reach the
conclusions of their most difficult demonstrations had led me to imagine that
all things, to the knowledge of which man is competent, are mutually connected
in the same way and that there is nothing so far removed from us as to be
beyond our reach, or so hidden that we cannot discover it, provided only that
we abstain from accepting the false for the true and always preserve in our
thoughts the order necessary for the deduction of one truth from another.
— René Descartes (1596 - 1650),
Discourse on Method, 16.
Hypotheses lead persons to try
a variety of experiments, in order to ascertain [test] them. In these experiments new facts generally
arise. These new facts serve to correct
the hypothesis which gave occasion to them.
The theory thus corrected serves to discover more new facts, which . . .
bring the theory still nearer the truth.
— Joseph Priestley (1733 -
1804), The History and Present State of Electricity, with
Original Experiments, 1767. p. 421.
One is at liberty to suppose
that somewhere along the way the scientist has intuitively abstracted rules of
the game for himself, but there is little reason to believe it. Though many scientists talk easily and well
about particular individual hypotheses that underlie a concrete piece of current
research, they are little better than laymen at characterizing the established
bases of their field, its legitimate problems and methods.
— Thomas Kuhn, The Structure of Scientific Revolutions, second edition,
1970, p. 47.
According to [Popper], it is the
task of the scientist, guided by the knowledge of his time, to propose a theory
that takes into account what is known, but which, over and above this,
forecasts what future experiments and observations should show. It is only if a theory submits itself to
empirical tests that one can call it scientific. If such an empirical test goes against the
theory, then the theory has been disproved.
If it agrees with the forecasts of the theory, then it becomes the task
of the theorist to go on making more and more forecasts, to go on sticking his
neck out. A theory is scientific only as
long as it lives dangerously. If it is
not at risk, it is not part of science.
— Sir Hermann Bondi, Setting the Scene.
No scientific theory is a
collection of facts. It will not even do
to call a theory true or false in the simple sense in which every fact is
either so or not so.
— Jacob Bronowski (1908 - ), Science and Human Values,
Julian Messner, 1956.
In parts of biology — the study
of heredity, for example — the first universally received paradigms are still
more recent; and it remains an open question what parts of social science have
yet acquired such paradigms at all.
History suggests the road to a firm research consensus is extraordinarily
arduous.
— Thomas Kuhn, The Structure of Scientific Revolutions, second edition,
1970, p. 15.
Men who have excessive faith in
their theories or ideas are not only ill-prepared for making discoveries; they
also make very poor observations.
— Claude Bernard (1813 - 1878)
It is the greatest discovery in
method which science has made that the apparently trivial, the merely curious,
may be clues to an understanding of the deepest principles of nature.
— Sir George Paget Thomson (1892- ????)
Science cannot discover truth,
but it is an excellent means of discovering error. The residuum left over after errors are
eliminated is usually called scientific truth.
— Kenneth Boulding
It remains true that, on the
large lines, Richelieu could afford to be sincere, Bismarck could not; and to
be compelled to insincerity in the large lines is a heavy burden, a large tax
upon energy.
— Hilaire Belloc (1870 - 1953),
'Richelieu and Bismarck' in Stories Essays and Poems,
Everyman Library 948, 1957, 197.
The main difference of modern
scientific research from that of the Middle Ages, the secret of its immense
successes, lies in its collective character, in the fact that every fruitful
experiment is published, every new discovery of relationship explained.
— H. G. Wells (1866 - 1946),
quoted in Aubrey's Brief Lives, Penguin Books, p.
69.
— Sir Macfarlane Burnet, Walter and Eliza Hall Institute 1915 - 1965, Melbourne
University Press, 1971.
— Thorstein Veblen (1857 -
1929), The Place of Science in Modern Civilization.
At first useless, these facts
had to remain unperceived until the moment when the needs and progress of
science provoked us to discover them.
— Etienne Geoffroy St Hilaire
(1772 - 1844), quoted by Stephen Jay Gould in 'How does a panda fit?' in An Urchin in the Storm, Penguin, 1987.
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