Fun for you theorists, maybe, but it has no practical application, no relevance to real life.

But the Cornell scientists said the results raised troubling questions for theorists.

The existence of altruistic behaviors has been a difficult problem for evolutionary theorists from the beginning.

That, if nothing else, insures its continued allure for theorists.

For theorists, the new reports bring both comfort and provocation.

The most important problem for theorists is whether politicians, officers, the Government and others will accept two information systems.

For theorists, this is a time of high anxiety.

But the past is not particularly rich in examples for theorists to draw on.

For other theorists, there is no such thing as psychological dysfunction or being mentally ill.

For theorists, the notion of a war on terrorism is inherently contradictory.