"In so far as such a theory is empirically correct it will also tell us what empirical facts it should be possible to observe in a given set of circumstances"

This quote by Talcott Parsons suggests that a theory ought to be empirically correct in order to work. This means that the theory needs to be based on proof and realities that can be observed in the real life. To put it simply, the theory must be able to forecast what will happen in a given set of scenarios. This suggests that the theory must be evaluated and validated in order to be accepted as legitimate. Moreover, the theory ought to have the ability to describe the observed truths and offer a logical description for them. This quote emphasizes the significance of empirical proof in the advancement of a legitimate theory. It recommends that a theory should have the ability to discuss the observed truths and provide a sensible description for them in order to be accepted as legitimate.