He is reading a book about the theory of evolution.

He is an atheist, denying the existence of God.

Phonology is a branch of linguistics that studies the system of sounds and their functions.

He analyzed the problem from the perspective of positivism.

He learned about substantialism in his philosophy class.

He deeply believes in conspiracy theories.

He strongly supports royalism.

Syntax is a branch of linguistics.

He is majoring in syntax at university.

He strongly supports royalism.