If the facts don't fit the theory, change the facts.

If the facts don't fit the theory, change the facts.

A young boy is a theory, an old man is a fact.

A young boy is a theory, an old man is a fact.

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.

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.

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.

It is the theory that decides what can be observed

It is the theory that decides what can be observed

How empty is theory in the presence of fact

How empty is theory in the presence of 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.

Whenever a theory appears to you as the only possible one, take this as a sign that you have neither read more

Whenever a theory appears to you as the only possible one, take this as a sign that you have neither understood the theory nor the problem which it was intended to solve