A Quote by Sal Khan

You have all this education theory, and people try to make larger statements than maybe what their data would back up, because they've done these small experiments that are tied to a very particular case with a very particular implementation... theory definitely matters, but I think dogma matters less.
Henceforth, whilst there are a great many theories and models proposed as to how, or why, magic works (based on subtle energies, animal magnetism, psychological concepts, quantum theory, mathematics or the so-called anthropomorphic principle) it is not a case that one of them is more 'true' than others, but a case of which theory or model you choose to believe in, or which theory you find most attractive. Indeed, from a Chaos Magic perspective, you can selectively believe that a particular theory or model of magical action is true only for the duration of a particular ritual or phase of work.
I have been sitting around waiting for an opportunity to get to do something that matters for so long. Not just that matters in the world, which I think that season, in particular, had a very important meaning for a lot of people, but for me, as an actress.
The theory of free speech, that truth is so much larger and stranger and more many-sided than we know of, that it is very much better at all costs to hear everyone's account of it, is a theory which has been justified on the whole by experiment, but which remains a very daring and even a very surprising theory. It is really one of the great discoveries of the modern time.
We are all trained to be data driven people, but no hard data exist about the future. Therefore, the only way to look into the future with any degree of accuracy is to use theory, statements of what causes what and why. If executives have the right theories in their heads, they can very quickly interpret market developments. They can identify what matters and why, and act accordingly. So we suggest decision-makers should start by gaining a deep understanding of the relevant collection of theories, and then be alert for signals that indicate certain types of developments.
If criticism has made such discoveries as to necessitate the abandonment of the doctrine of plenary inspiration, it is not enough to say that we are compelled to abandon only a "particular theory of inspiration..." We must go on to say that that "particular theory of inspiration" is the theory of the apostles and of the Lord, and that in abandoning it we are abandoning them.
For strictly scientific or technological purposes all this is irrelevant. On a pragmatic view, as on a religious view, theory and concepts are held in faith. On the pragmatic view the only thing that matters is that the theory is efficacious, that it 'works' and that the necessary preliminaries and side issues do not cost too much in time and effort. Beyond that, theory and concepts go to constitute a language in which the scientistic matters at issue can be formulated and discussed.
But actually theory is very practical. Gravity is a theory, for example. It allows you to predict that if you step off a cliff you will fall; you don't have to collect data on that.
No particular theory may ever be regarded as absolutely certain.... No scientific theory is sacrosanct.
My opinion about Miller's experiments is the following. ... Should the positive result be confirmed, then the special theory of relativity and with it the general theory of relativity, in its current form, would be invalid. Experimentum summus judex. Only the equivalence of inertia and gravitation would remain, however, they would have to lead to a significantly different theory.
Those who actually do have a valid claim to such special competence have a particular obligation to make very clear to the general public the limits of what is understood at any serious level; these limits are typically very narrow in matters of significance in human affairs.
We run a danger of trying to say the casualties are less than other wars or more than expected. It's just everybody matters, every person matters, and what really matters is having the strategy and the will to make sure any death is not - is honored by achieving an objective.
I believe without exception that theory follows practice. Whenever there is a conflict between theory and practice, theory is wrong. As far as I'm concerned, we make theories for what people have done.
I have emphasized experiments more than theory. Of course, we need some theory when thinking of soft matter.
A justice is not like a law professor, who might say, 'This is my theory... and this is what I'm going to be faithful to and consistent with,' and in twenty years will look back and say, 'I had a consistent theory of the First Amendment as applied to a particular area.'
Whereas certain people start with a recollection or an experience and paint that experience, to some of us the act of doing is the experience; so that we are not quite clear why we are engaged on a particular work. And because we are more interested in plastic matters than we are in matters of words, once can begin a painting and carry it through and stop it and do nothing about the title at all. All pictures are full of association.
Close-Up is a very particular film in my oeuvre. It's a film that was made in a very particular way; mainly because I didn't really have the time to think about how to go about making the film.
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