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An ounce of action is worth a ton of theory.
An ounce of action is worth a ton of theory.
Many things difficult to design prove easy to performance.
Many things difficult to design prove easy to performance.
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.
In theory there is no difference between theory and practice. In practice there is.
In theory there is no difference between theory and practice. In practice there is.
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.
A young boy is a theory, an old man is a fact.
A young boy is a theory, an old man is a fact.
Science is organized common sense where many a beautiful theory was killed by an ugly fact.
Science is organized common sense where many a beautiful theory was killed by an ugly fact.
Conjecture as to things useful, is good; but conjecture as to what it would be useless to know, is very read more
Conjecture as to things useful, is good; but conjecture as to what it would be useless to know, is very idle.
