Now that was a very natural and innocent subject, surely.
Lewis also showed great aptitude as a painter of natural subjects.
The lawn is a natural subject for a summer show, if also a highly perverse one.
They did not seem to be the natural subjects of man as the other creatures were.
In the late 19th century, science's leading lights regarded feelings as a natural subject for exploration.
Similarly, there are two kinds of legal subject: natural and juristic.
The church-state problem might sound like a natural subject for a legal scholar, but it isn't really.
He also stated he was a natural born British subject.
Attenborough thought that the story of evolution would be a natural subject for such a series.
Finding a way of assessing its possible impact is a natural subject for the interinstitutional agreement.