Subsequently, Boethius refined the word to mean "an individual substance of a rational nature."

Rationale: "We have knowledge of some truths in a particular subject area, S, as part of our rational nature."

My fears, for indeed they remained, were of a rational nature.

I'm sure the future Guardian articles on these issues will take into account women's "more rational" nature.

The intellectual soul by itself is not a human person (i.e., an individual supposit of a rational nature).

The other weakness of the social contract model lies in its excessively rational and legalistic nature.

Anglican theologies are the most prominent because they have been accepted as the universal in their rational nature.

The rational and practical nature of the papyrus is illustrated in 48 case histories, which are listed according to each organ.

Others have attempted to argue the rational nature of religious belief.

It is the nationalism "which does not allow the rational nature of the human mind to assert itself".