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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.
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.
There can be no theory of any account unless it corroborate with the theory of the earth.
There can be no theory of any account unless it corroborate with the theory of the earth.
Let us work without theorizing, 'Tis the only way to make life endurable.
Let us work without theorizing, 'Tis the only way to make life endurable.
You cannot run a business, or anything else, on a theory.
You cannot run a business, or anything else, on a theory.
You have to know you can first. How comes later.
You have to know you can first. How comes later.
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.
[Do not] put too much confidence in experimental results until they have been confirmed by theory.
[Do not] put too much confidence in experimental results until they have been confirmed by theory.
