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.

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.

I guess my main influences are Jesus, rock 'n' roll and ex-wives. In that order.

My sculpture is very personal; for years my subjects were family and close, close friends.

Believe it or not, one teacher used to call me a giant spastic for not being able to play football.

Heirlooms we dont have in our family. But stories weve got.

If you go to prison, your child support adds up.

If I could afford it, I'd buy 1,000 acres and put my house right dead-center.

Whatever you do or dream you can begin it. Boldness has genius and power and magic in it.

Investors are always biased to invest in things they themselves understand. So venture capitalists like Uber because they like driving in black town cars. They don't like Airbnb because they like staying in five-star hotels, not sleeping on people's couches.

For each new morning with its light for rest and shelter of the night for health and food for love and friends for everything Thy goodness sends.

I love 'Harry Potter' and JK Rowling - don't laugh at me!

My mom and dad put my brother and sister through university and they were very keen for us to have an academic background just to give us a chance.

I've known the glory of the stage and the glory of the spotlight. I still crave it. I want to be on 'American Bandstand' and 'Soul Train' as a solo artist. As a producer, songwriter and arranger, I help other artists say what they want to say. But on my records, I say what I want to say.

I talk a big game because I carry a big stick.

Sometimes, people choose to leave not because of selfish reasons. But they just know that things will get worse if they stay.

True terrorism, you know, weaponized fear. In defense of ourselves, we're fighting - actively fighting something else. But if you're going to fight terrorism, to me, you fight the root causes of terrorism.

In Italy there's perhaps a little less space than in Spain, but there's certainly as much sunshine.

There isn't a book that has changed me, but I have favourites such as 'Pride and Prejudice' which I often re-read.

Normally, the thin-skinned have an endless array of excuses for why their workaday interactions are so much harder to bear for them than for the rest of us. In the eyes of the self-suffering, they are being victimised, used and always abused, when they're actually experiencing exactly the same body blows as the rest of us.

The family unit is the first group of people that you are a part of. While there are obvious exceptions, there's usually an intrinsic trust that is built in to your family.

Often we talk about God's ability to change lives without fully understanding how to access that power.