The actual quality of the seeing and hearing does not need to be good.

Sound quality in all seating positions needs to be provided at acceptable levels.

But the cost and quality of patchouli oil produced in the area still needs to be improved.

Who is to say what new principles, laws, processes or qualities will need to be disclosed to solve these problems?

To sell cars in the hundreds or thousands per year, build costs need to be low, and quality needs to be high.

In order for wildlife, particularly fish, to thrive, the quality of the water needs to be good.

If so many people hadn't turned to cheap shoes the quality needn't have become so expensive.

Providing the quantities and quality needed therefore represents a real challenge.

Consequently, the institutional quality in those countries will need to be improved as a matter of priority.

The overall quality of education, however, certainly needs improvement.