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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.
A young boy is a theory, an old man is a fact.
A young boy is a theory, an old man is a 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.
How empty is theory in the presence of fact
How empty is theory in the presence of fact
You cannot run a business, or anything else, on a theory.
You cannot run a business, or anything else, on a theory.
Many things difficult to design prove easy to performance.
Many things difficult to design prove easy to performance.
Relativity applies to physics, not ethics
Relativity applies to physics, not ethics
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.
