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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.
You have to know you can first. How comes later.
You have to know you can first. How comes later.
It is the theory that decides what can be observed
It is the theory that decides what can be observed
Our theories of the eternal are as valuable as are those which a chick which has not broken its way read more
Our theories of the eternal are as valuable as are those which a chick which has not broken its way through its shell might form of the outside world.
How empty is theory in the presence of fact
How empty is theory in the presence of fact
Many things difficult to design prove easy to performance.
Many things difficult to design prove easy to performance.
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.
Relativity applies to physics, not ethics
Relativity applies to physics, not ethics
