The word theory, as used in the natural sciences, doesn't mean an idea tentatively held for purposes of argument — that we call a hypothesis. Rather, a theory is a set of logically consistent abstract principles that explain a body of concrete facts. It is the logical connections among the principles and the facts that characterize a theory as truth. No one element of a theory, not a single fact or principle, can be changed without creating a logical contradiction that invalidates the entire system. Thus, although it may not be possible to substantiate directly a particular principle in the theory, the principle is validated by the consistency of the entire logical structure. Alan Cromer, Uncommon Sense: The Heretical Nature of Science (1993)
I have steadily endeavoured to keep my mind free so as to give up any hypothesis, however much beloved (and I cannot resist forming one on every subject) as soon as the facts are shown to be opposed to it. Charles Darwin
No other explanation has ever been given of the marvellous fact that the embryos of a man, dog, seal, bat, reptile, etc., can at first hardly be distinguished from each other. Charles Darwin
The insistence upon the untrustworthiness of science is usually, if not always, subtle propaganda in favour of some theology or metaphysics which would take us farther away from the world of obdurate reality rather than give us a clearer view. Amid the welter of such day-dreams, it is safe to cling to scientific fact. The conclusions of science are the surest knowledge we have; and so far as science goes, we can trust it more confidently than any other brand of truth. Durant Drake, Invitation to Philosophy (1933)
When a distinguished but elderly scientist states that something is possible, he is almost certainly right. When he states that something is impossible, he is very probably wrong. Arthur C. Clarke
Any sufficiently advanced technology is indistinguishable from magic. Arthur C. Clarke
You care for nothing but shooting, dogs, and rat-catching and you will be a disgrace to yourself and your family. Dr Robert Darwin, letter to his son
There are in fact two things, science and opinion; the former begets knowledge, the latter ignorance.Hippocrates
The deepest sin against the human mind is to believe things without evidence. Science is simply common sense at its best — that is, rigidly accurate in observation, and merciless to fallacy in logic. Thomas Henry, "Evolution and Ethics" (1893)
Infinite: Limitless or endless in space, extent, or size (Oxford Dictionary). Bigger than the biggest thing ever and then some. Much bigger than that in fact, really amazingly immense, a totally stunning size, real 'wow, that's big', time. Infinity is just so big that by comparison, bigness itself looks really titchy. Gigantic multiplied by colossal multiplied by staggeringly huge is the sort of concept we're trying to get across here. Douglas Adams, The Hitchhiker's Guide to the Galaxy
The body is a self-building machine, a self-stoking, self-regulating, self-repairing machine - the most marvellous and unique automatic mechanism in the universe. J. Arthur Thomson
If it cannot be expressed in figures, it is not science, it is opinion. Robert A. Heinlein
Luck is probability taken personally. Chip Denman
He uses statistics as a drunken man uses a lamp post - more for support than illumination. Andrew Lang
Statistics are like bikinis. What they reveal is suggestive, but what they conceal is vital. Aaron Levenstein
Statistics are like prisoners under torture: with the proper tweaking you can get them to confess to anything. John Rothchild
The average human being has one breast and one testicle. Stephen Grollman
It is better to be roughly right than precisely wrong. John Maynard Keynes
THE NORMAL LAW OF ERROR STANDS OUT IN THE EXPERIENCE OF MANKIND AS ONE OF THE BROADEST GENERALISATIONS OF NATURAL PHILOSOPHY IT SERVES AS THE GUIDING INSTRUMENT IN RESEARCHES IN THE PHYSICAL AND SOCIAL SCIENCES AND IN MEDICINE AGRICULTURE AND ENGINEERING IT IS AN INDISPENSABLE TOOL FOR THE ANALYSIS AND THE INTERPRETATION OF THE BASIC DATA OBTAINED BY OBSERVATION AND EXPERIMENT W. J. Youden
Das computenmachine is nicht fur gefingerpoken und mittengrabben. Ist easy schnappen der springenwerk, blowenfusen, und poppencorken mit spittzensparken. Ist nicht fur gewerken by das dummkopfen. Das rubbernecken sightseeren keepen hands in das pokets, relaxen und watch das blinkenlights. Anon.