But how exactly should he put his new theory to work?

They say, too, that a new theory is needed to make sense of America.

A whole new theory of fields has to be worked out.

Based on this research, he developed a new theory of weight control.

"And now you're building the new theory of the case."

At the time, new theories of heat were being developed.

The only trouble with the new theory was that it, also, might be wrong.

I lied myself blue in the face to create a new legal theory.

Put another way, any new, and even more complex theory can still possibly be true.

A new theory came into being - they were too big to fail.