Theory Quotes

2628 Theory quotes by 1622 unique authors

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… — Unknown Author
From the point of view of the pure morphologist the recapitulation theory is an instrument of research enabling him to reconstruct probable lines of descent;… — Unknown Author
I noticed affixed to a laboratory door the following words: "Les théories passent. Le Grenouille reste. [The theories pass. The frog remains.] &mdashJean Rostand, Carnets… — Frank Kermode
I was there when Abbe Georges Lemaître first proposed this [Big Bang] theory. ... There is no rational reason to doubt that the universe has… — Hannes Alfven
If the aim of physical theories is to explain experimental laws, theoretical physics is not an autonomous science; it is subordinate to metaphysics. — Pierre Duhem
In 1975, ... [speaking with Shiing Shen Chern], I told him I had finally learned ... the beauty of fiber-bundle theory and the profound Chern-Weil… — Chen-Ning Yang
In chemistry, our theories are crutches; to show that they are valid, they must be used to walk... A theory established with the help of… — Jean-Baptiste Dumas
In fact, Gentlemen, no geometry without arithmetic, no mechanics without geometry... you cannot count upon success, if your mind is not sufficiently exercised on the… — Unknown Author
It has been said by a distinguished philosopher that England is "usually the last to enter into the general movement of the European mind." The… — Isaac Todhunter
It is easy to make out three areas where scientists will be concentrating their efforts in the coming decades. One is in physics, where leading… — Dennis Flanagan
It surely can be no offence to state, that the progress of science has led to new views, and that the consequences that can be… — Henry De la Beche
Langmuir is a regular thinking machine. Put in facts, and you get out a theory. — Unknown Author
No theory ever agrees with all the facts in its domain, yet it is not always the theory that is to blame. Facts are constituted… — Paul Feyerabend
Since religion intrinsically rejects empirical methods, there should never be any attempt to reconcile scientific theories with religion. [An infinitely old universe, always evolving may… — Hannes Alfven
Since the beginning of physics, symmetry considerations have provided us with an extremely powerful and useful tool in our effort to understand nature. Gradually they… — Tsung-Dao Lee
The conflict of theories, leading, as it eventually must, to the survival of the fittest, is advantageous. — Grove Karl Gilbert
The most dangerous tendency of the modern world is the way in which bogus theories are given the force of dogma. — Jean Danielou
The theory of probabilities is basically only common sense reduced to a calculus. It makes one estimate accurately what right-minded people feel by a sort… — Pierre-Simon Laplace
There is no such thing as absolute truth and absolute falsehood. The scientific mind should never recognise the perfect truth or the perfect falsehood of… — Unknown Author
This incomparable Author having at length been prevailed upon to appear in public, has in this Treatise given a most notable instance of the extent… — Edmond Halley
This theory [the oxygen theory] is not as I have heard it described, that of the French chemists, it is mine (elle est la mienne);… — Antoine Lavoisier
Traditional dinosaur theory is full of short circuits. Like the antiquated wiring in an old house, the details sputter and burn out when specific parts… — Robert T. Bakker
Twenty years ago many chemists would have defended the theory of bond arms as a satisfactory explanation because they had become accustomed to thinking of… — Henry Margenau
Until now, physical theories have been regarded as merely models with approximately describe the reality of nature. As the models improve, so the fit between… — Paul Davies
Who ... is not familiar with Maxwell's memoirs on his dynamical theory of gases? ... from one side enter the equations of state; from the… — Ludwig Boltzmann

Who Wrote These Theory Quotes

1,622 authors contributed a total of 2,628 Theory Quotes, led by these top contributors: