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Quotes About Theories

there are yet mixed in our institutions mediaeval theories of protection, regulation, and authority, and
~ William Graham Sumner
Clarity of perception and thought evidently requires that we be generally aware of how our experience is shaped by the insight (clear or confused) provided by the theories that are implicit or explicit in our general ways of thinking.
~ David Bohm
What prevents theoretical insights from going beyond existing limitations and changing to meet new facts is just the belief that theories give true knowledge of reality (which implies, of course, that they need never change).
~ David Bohm
If we supposed that theories gave true knowledge, corresponding to 'reality as it is', then we would have to conclude that Newtonian theory was true until around 1900, after which it suddenly became false, while relativity and quantum theory suddenly became the truth. Such an absurd conclusion does not arise, however, if we say that all theories are insights, which are neither true nor false but, rather, clear in certain domains, and unclear when extended beyond these domains.
~ David Bohm
We never know any data before interpreting it through theories. All observations are, as Popper put it, theory-laden,* and hence fallible, as all our theories are. Consider
~ David Deutsch
Perhaps a more practical way of stressing the same truth would be to frame the growth of knowledge (all knowledge, not only scientific) as a continual transition from problems to better problems, rather than from problems to solutions or from theories to better theories. This
~ David Deutsch
Because pessimism needs to counter that argument in order to be at all persuasive, a recurring theme in pessimistic theories throughout history has been that an exceptionally dangerous moment is imminent.
~ David Deutsch
Whenever a wide range of variant theories can account equally well for the phenomenon they are trying to explain, there is no reason to prefer one of them over the others, so advocating a particular one in preference to the others is irrational.
~ David Deutsch
Since theories can contradict each other, but there are no contradictions in reality, every problem signals that our knowledge must be flawed or inadequate.
~ David Deutsch
They can be understood only by being explained. Fortunately, our best theories embody deep explanations as well as accurate predictions.
~ David Deutsch
We understand the fabric of reality only by understanding theories that explain it. And since they explain more than we are immediately aware of, we can understand more than we are immediately aware that we understand.
~ David Deutsch
For most of the history of our species, we had almost no success in creating such knowledge. Where does it come from? Empiricism said that we derive it from sensory experience. This is false. The real source of our theories is conjecture, and the real source of our knowledge is conjecture alternating with criticism.
~ David Deutsch
Indeed, there are some mysteries that must exist without answer. In the end we must accept them for what they are: complex and many-sided, ornamented with clues and theories, yet ultimately unknowable—like life itself.
~ David Ebershoff
One of the puzzling things about all the theories about the origins of money that we've been looking at so far is that they almost completely ignore the evidence of anthropology. Anthropologists do have a great deal of knowledge of how economies within stateless societies actually worked.
~ David Graeber
metaphysics by showing that these theories are not just false, but unintelligible.
~ David Hume
Theories are more common than achievements in the history of education.
~ Richard Livingstone
And now, without having wearied my friends, I hope, with detailed scientific accounts, theories, or deductions, I will only say that I have endeavoured to tell just the story of the adventure itself.
~ Joshua Slocum
Archaeology is the study of humanity itself, and unless that attitude towards the subject is kept in mind archaeology will be overwhelmed by impossible theories or a welter of flint chips.
~ Margaret Murray
They've got lots of theories, books, sciences - I've read a lot of those books. Most of them are pretty unhappy.
~ Frederick Lenz
A perfect parent is a person with excellent child-rearing theories and no actual children.
~ Dave Barry
There are some things only intellectuals are crazy enough to believe.
~ George Orwell
However strong his opinions and theories, Bash?'s primary allegiance was to the living moment and its accurate, full-hearted presentation. Of the formal requirements of haiku, he said, "If you have three or four, even five or seven extra syllables but the poem still sounds good, don't worry about it. But if one syllable stops the tongue, look at it hard.
~ Jane Hirshfield
Archer had reverted to all his old inherited ideas about marriage. It was less trouble to conform with the tradition and treat May exactly as all his friends treated their wives than to try to put into practice the theories with which his untrammelled bachelorhood had dallied.
~ Edith Wharton
She had once more shown her talent for profiting by the unexpected, and dangerous theories as to the advisability of yielding to impulse were germinating under the surface of smiling attention which she continued to present to her companion.
~ Edith Wharton