There is a theory which states that if ever for any reason anyone discovers what exactly the Universe is for read more

There is a theory which states that if ever for any reason anyone discovers what exactly the Universe is for and why it is here it will instantly disappear and be replaced by something even more bizarre and inexplicable. There is another that states that this has already happened.

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

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

Relativity applies to physics, not ethics

Relativity applies to physics, not ethics

You have to know you can first. How comes later.

You have to know you can first. How comes later.

How empty is theory in the presence of fact

How empty is theory in the presence of fact

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.

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.

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

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

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.