E-- and that's just the pure theory, without even getting into applications.

This is pure theory, and I'm not pretending it's anything else.

This is pure theory, of course, but maybe it has something to do with the weather.

A possible answer came in the third week, when the pure theory of space operations gave way to practical experience.

He is preparing a book about a pure theory of the Republic.

He also contributed to the pure theories of rings, groups and fields.

We can also go from pure theory to practical sorcery.

All of this is pure theory, but at least it's consistent with the available data.

Yes, as politicians we are operating in the sphere of practical politics and not pure economic theory.

"My imagination is not good enough to do pure theory without seeing the real facts on the ground."