If there are four equations and only three variables, and no one of the equations is derivable from the others by algebraic manipulation then there is another variable missing.

Theory not only formulates what we know but also tells us what we want to know, that is, the questions to which an answer is needed.

That is, a system starts with a group of interrelated propositions which involve reference to empirical observations within the logical framework of the propositions in question.

If there are four equations and only three variables, and no one of the equations is derivable from the others by algebraic manipulation then there is another variable missing.

The main concern of the study is with the outline of a theoretical system. Its minor variations from writer to writer are not a matter of concern to this analysis.

The implications of these considerations justify the statement that all empirically verifiable knowledge even the commonsense knowledge of everyday life - involves implicitly, if not explicitly, systematic theory in this sense.

If observed facts of undoubted accuracy will not fit any of the alternatives it leaves open, the system itself is in need of reconstruction.

Of course there may well be particular reasons why Spencer rather than others is dead, as there were also particular reasons why he rather than others made such a stir.

Among those who are satisfactory in this respect it is desirable to have represented as great a diversity of intellectual tradition, social milieu and personal character as possible.

Special emphasis should be laid on this intimate interrelation of general statements about empirical fact with the logical elements and structure of theoretical systems.

But the scientific importance of a change in knowledge of fact consists precisely in j its having consequences for a system of theory.

The hypothesis may be put forward, to be tested by the s subsequent investigation, that this development has been in large part a matter of the reciprocal interaction of new factual insights and knowledge on the one hand with changes in the theoretical system on the other.

It is probably safe to say that all the changes of factual knowledge which have led to the relativity theory, resulting in a very great theoretical development, are completely trivial from any point of view except their relevance to the structure of a theoretical system.

A gloss is a total system of perception and language.

A theoretical system does not merely state facts which have been observed and that logically deducible relations to other facts which have also been observed.

Thus, in general, in the first instance, the direction of interest in empirical fact will be canalised by the logical structure of the theoretical system.

Spencer's god was Evolution, sometimes also called Progress.

The functions of the family in a highly differentiated society are not to be interpreted as functions directly on behalf of the society, but on behalf of personality.

The conception that, instead of this, contemporary society is at or near a turning point is very prominent in the views of a school of social scientists who, though they are still comparatively few, are getting more and more of a hearing.

The importance of certain problems concerning the facts will be inherent in the structure of the system.

The system becomes logically closed when each of the logical implications which can be derived from any one proposition within the system finds its statement in another proposition in the same system.

Empirical interest will be in the facts so far as they are relevant to the solution of these problems.

In so far as such a theory is empirically correct it will also tell us what empirical facts it should be possible to observe in a given set of circumstances.

Now obviously the propositions of the system have reference to matters of empirical fact; if they did not, they could have no claim to be called scientific.

The part an actor played on stage was once written on a separate roll of paper.

From all this it follows what the general character of the problem of the development of a body of scientific knowledge is, in so far as it depends on elements internal to science itself.

But the fact a person denies that he is theorising is no reason for taking him at his word and failing to investigate what implicit theory is involved in his statements.

It is that of increasing knowledge of empirical fact, intimately combined with changing interpretations of this body of fact - hence changing general statements about it - and, not least, a changing a structure of the theoretical system.

Empirical interest will be in the facts so far as they are relevant to the solution of these problems.

China's idea of fair trade is government subsidies of its textile and apparel exports to the United States, currency manipulation, and forgiveness of loans by its government banks.

Acting is the work of two people-it's only possible when you have the complicity, the help, even the manipulation of a director.

For example, in painting the form arises from abstract elements of line and color, while in cinema the material concreteness of the image within the frame presents - as an element - the greatest difficulty in manipulation.

Madison Avenue is a very powerful aggression against private consciousness. A demand that you yield your private consciousness to public manipulation.

So we should preserve it. I don't think that digital storage is necessarily a good thing, but I definitely think that digital manipulation is interesting.

If there are four equations and only three variables, and no one of the equations is derivable from the others by algebraic manipulation then there is another variable missing.

The conscious and intelligent manipulation of the organized habits and opinions of the masses is an important element in democratic society.

There is a considerable amount of manipulation in the printmaking from the straight photograph to the finished print. If I do my job correctly that shouldn't be visible at all, it should be transparent.

We all agree that parents have the primary responsibility of filtering the material that reaches children. However, children are often lured onto websites containing obscene material through the devious manipulation of search engines.

The basic tool for the manipulation of reality is the manipulation of words. If you can control the meaning of words, you can control the people who must use the words.

Then there is the worst part of Christianity, which is awful: power, corruption, manipulation... But then again, these feature are ever present in any organization.

The principle that human nature, in its psychological aspects, is nothing more than a product of history and given social relations removes all barriers to coercion and manipulation by the powerful.

Speculation is only a word covering the making of money out of the manipulation of prices, instead of supplying goods and services.

I still think that I'm playing instruments, not just pushing buttons and there it goes. It's interactive and alive with the sound and the manipulation and it plays like instruments.

I can't really put it in one sentence because although on one hand Preacher is about faith and yes it is also about, I suppose, the search for God, the search for faith and the manipulation and the abuse committed by figures in whom I suppose people have faith.

I will say that the idea of a woman being deceptive came from that original discussion with critics and reporters about if woman could do that kind of thing. Evelyn, herself, grew out of the discussions about how capable women are of deceit and lying and manipulation.

Love comes when manipulation stops; when you think more about the other person than about his or her reactions to you. When you dare to reveal yourself fully. When you dare to be vulnerable.

This empire, unlike any other in the history of the world, has been built primarily through economic manipulation, through cheating, through fraud, through seducing people into our way of life, through the economic hit men. I was very much a part of that.

I do respect people's faith, but I don't respect their manipulation of that faith in order to create fear and control.

I've not seen in my lifetime any politician who is a heroic figure. The manipulation that all politicians use on one level or another is so transparent.