The vast subject of human nutrition alone gives it a very real and vital importance in our world today.

A small show on such a vast subject is, of course, bound to be risky.

Biology is a vast subject containing many subdivisions, topics, and disciplines.

It is a vast subject, too vast for any exhibition to encompass.

To conclude on such a vast subject as this is not easy but I would like to make the following points.

"Computing" is such a vast subject that a certain amount of self guided study is required for success in the field.

Limitations of space preclude a lengthy dissertation on what is a vast subject.

This is a vast subject, so I will just focus on one detail: the processing of stem cells.

True, so vast a subject can hardly be covered in a single exhibition built around historical texts, objects and images.

The relationship between law and economic activity is a vast subject.