An ounce of action is worth a ton of theory. Ralph Waldo Emerson American Poet More Ralph Waldo Emerson Quotes 54
If the facts don't fit the theory, change the facts. Albert Einstein German Physicist More Albert Einstein Quotes 17
There is no complete theory of anything. Robert Anton Wilson American Writer More Robert Anton Wilson Quotes 4
Philosophy is not a theory but an activity. Ludwig Wittgenstein Austrian Philosopher More Ludwig Wittgenstein Quotes 3
I'm very manipulative towards directors. My theory is that everyone on the set is directing the film, we're all receiving art messages from the universe on how we should do the film. Jeff Bridges American Actor More Jeff Bridges Quotes 1
The theory of Communism may be summed up in one sentence: Abolish all private property. Karl Marx German Philosopher More Karl Marx Quotes 1
Experience without theory is blind, but theory without experience is mere intellectual play. Immanuel Kant German Philosopher More Immanuel Kant Quotes 1
I just can't explain to you the mother bear theory of protecting. You try in so many ways to protect your child all the time and you simply can't be there every minute of the day. Lisa Carlton More Lisa Carlton Quotes 1
While gossip among women is universally ridiculed as low and trivial, gossip among men, especially if it is about women, is called theory, or idea, or fact. Andrea Dworkin American Critic More Andrea Dworkin Quotes 1
The fact - not theory - that evolution has occurred and the Darwinian theory as to how it occurred have become so confused in popular opinion that the distinction must be stressed. George G. Simpson More George G. Simpson Quotes 1
No theory is good unless it permits, not rest, but the greatest work. No theory is good except on condition that one use it to go on beyond. Andre Gide French Novelist More Andre Gide Quotes 1
At the present day the crude theory of the sexual impulse held on one side, and the ignorant rejection of theory altogether on the other side, are beginning to be seen as both alike unjustified. Havelock Ellis British Psychologist More Havelock Ellis Quotes 0
Architecture doesn't come from theory. You don't think your way through a building. Arthur Erickson Canadian Architect More Arthur Erickson Quotes 0
And it really began with Einstein. We attended his lectures. Now the theory of relativity remained - and still remains - only a theory. It has not been proven. But it suggested a completely different picture of the physical world. Douglas Sirk German Director More Douglas Sirk Quotes 0
It is disturbing to discover in oneself these curious revelations of the validity of the Darwinian theory. If it is true that we have sprung from the ape, there are occasions when my own spring appears not to have been very far. Cornelia Otis Skinner American Actress More Cornelia Otis Skinner Quotes 0
Practical wisdom is only to be learned in the school of experience. Precepts and instruction are useful so far as they go, but, without the discipline of real life, they remain of the nature of theory only. Samuel Smiles Scottish Author More Samuel Smiles Quotes 0
The theory that can absorb the greatest number of facts, and persist in doing so, generation after generation, through all changes of opinion and detail, is the one that must rule all observation. Adam Smith Scottish Economist More Adam Smith Quotes 0
Even before string theory, especially as physics developed in the 20th century, it turned out that the equations that really work in describing nature with the most generality and the greatest simplicity are very elegant and subtle. Edward Witten American Mathematician More Edward Witten Quotes 0
I wouldn't have thought that a wrong theory should lead us to understand better the ordinary quantum field theories or to have new insights about the quantum states of black holes. Edward Witten American Mathematician More Edward Witten Quotes 0
If I take the theory as we have it now, literally, I would conclude that extra dimensions really exist. They're part of nature. We don't really know how big they are yet, but we hope to explore that in various ways. Edward Witten American Mathematician More Edward Witten Quotes 0
On the other hand, we don't understand the theory too completely, and because of this fuzziness of spacetime, the very concept of spacetime and spacetime dimensions isn't precisely defined. Edward Witten American Mathematician More Edward Witten Quotes 0
So when you ask me how string theory might be tested, I can tell you what's likely to happen at accelerators or some parts of the theory that are likely to be tested. Edward Witten American Mathematician More Edward Witten Quotes 0
Technically you need the extra dimensions. At first people didn't like them too much, but they've got a big benefit, which is that the ability of string theory to describe all the elementary particles and their forces along with gravity depends on using the extra dimensions. Edward Witten American Mathematician More Edward Witten Quotes 0
There was a long history of speculation that in quantum gravity, unlike Einstein's classical theory, it might be possible for the topology of spacetime to change. Edward Witten American Mathematician More Edward Witten Quotes 0
It doesn't matter how beautiful your theory is, it doesn't matter how smart you are. If it doesn't agree with experiment, it's wrong. Richard P. Feynman American Physicist More Richard P. Feynman Quotes 0