The theory fitted, because since then things had become worse.

But "no theory fits the myriad facts," the author concludes.

But one never knows how the theory fits the fact.

They were simply concerned that the existing theories didn't fit together.

When the theory didn't fit, we junked it and made up a new one.

I'm inclined to agree, since your theory alone fits all the available facts.

"But the theory fits the facts that we do have."

His theory fit the observed data, at any rate.

The following table shows how beautifully this theory fits the facts.

You must take me into partnership-I'll find the theories to fit all your cases.