There are many theories about the origin of the universe.

The theory of relativity revolutionized our understanding of space and time.

In theory, anything is possible.

Many people believe in conspiracy theories.

Many scientists are studying string theories to understand the fundamental nature of the universe.

Quantum theories have revolutionized our understanding of the fundamental nature of reality.

Percolation theories are widely used in various fields of science.

The theories of relativity revolutionized our understanding of the universe.

Ergodic theories are widely studied in mathematics and physics.

Skopos theories provide a framework for understanding translation purposes.