I have based all my policies on the theory that there's always a market for quality.

The method is based on the theory of complex variables.

One reason for the need to belong is based on the theory of evolution.

The group starts moving toward the nearest edge based on her theory.

"But this one is based on the theory of consumer fraud."

The medical knowledge of the time was based on Hippocrates' theory.

It is based on Freud's theory of the unconscious mind.

Bubbles are often said to be based on the "greater fool" theory.

That's based on the theory that anyone with a fur coat stands out more than someone without one.

The development of 714-X was based on the theory that there are tiny living things in the blood called somatids.