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A theory has only the alternative of being right or wrong. A model has a third possibility - it may read more
A theory has only the alternative of being right or wrong. A model has a third possibility - it may be right but irrelevant.
You have to know you can first. How comes later.
You have to know you can first. How comes later.
The theory seems to be that as long as a man is a failure he is one of God's children, read more
The theory seems to be that as long as a man is a failure he is one of God's children, but that as soon as he succeeds he is taken over by the Devil.
If the facts don't fit the theory, change the facts.
If the facts don't fit the theory, change the facts.
A theory is no more like a fact than a photograph is like a person.
A theory is no more like a fact than a photograph is like a person.
I never once made a discovery ... I speak without exaggeration that I have constructed three thousand different theories in read more
I never once made a discovery ... I speak without exaggeration that I have constructed three thousand different theories in connection with the electric light ... Yet in only two cases did my experiments prove the truth of my theory.
He who loves practice without theory is like the sailor who boards ship without a rudder and compass and never read more
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.
In scientific work, those who refuse to go beyond fact rarely get as far as fact.
In scientific work, those who refuse to go beyond fact rarely get as far as fact.
