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.

You cannot run a business, or anything else, on a theory.

You cannot run a business, or anything else, on a theory.

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.

Many things difficult to design prove easy to performance.

Many things difficult to design prove easy to performance.

[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.

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.

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.

Relativity applies to physics, not ethics

Relativity applies to physics, not ethics

An ounce of action is worth a ton of theory.

An ounce of action is worth a ton of theory.