In theory there is no difference between theory and practice. In practice there is. Read Summary
Rational behavior requires theory. Reactive behavior requires only reflex action. Read Summary
If the facts don't fit the theory, change the facts. Read Summary
I've often been accused of, 'Oh the movies looked good but there's no story,' but I disagree with that in theory, and '9' is a perfect example for me because the feel, the texture, and the look of that world, and those characters, is the story. That's a major component of why you feel the way you do when you're watching it. Read Summary
Relationships are like traffic lights. And I just have this theory that I can only exist in a relationship if it's a green light. Read Summary
Never worry about theory as long as the machinery does what it's supposed to do. Read Summary
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. Read Summary
An ounce of action is worth a ton of theory. Read Summary
I can easily conceive, most Holy Father, that as soon as some people learn that in this book which I have written concerning the revolutions of the heavenly bodies, I ascribe certain motions to the Earth, they will cry out at once that I and my theory should be rejected. Read Summary
If you want to know the taste of a pear, you must change the pear by eating it yourself. If you want to know the theory and methods of revolution, you must take part in revolution. All genuine knowledge originates in direct experience. Read Summary
Philosophy is not a theory but an activity. Read Summary
He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never knows where he may cast. Read Summary
All theory, dear friend, is gray, but the golden tree of life springs ever green. Read Summary
I never accepted Communist dogma or theory. Read Summary
If the experiments which I urge be defective, it cannot be difficult to show the defects; but if valid, then by proving the theory, they must render all objections invalid. Read Summary
Creationists make it sound as though a 'theory' is something you dreamt up after being drunk all night. Read Summary
Experience without theory is blind, but theory without experience is mere intellectual play. Read Summary
Democracy is the theory that the common people know what they want, and deserve to get it good and hard. Read Summary
Let your religion be less of a theory and more of a love affair. Read Summary
There is a theory which states that if ever anyone discovers exactly what the Universe is for and why it is here, it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another theory which states that this has already happened. Read Summary