He has a deep interest in abstract art.

He chose a life of asceticism.

He deeply believes in the principles of socialism.

He is a perfectionist, and his approach to work is very strict.

My sister decided to become a vegetarian.

He is known as a historical revisionist.

Leninism is a form of communism that particularly emphasizes workers' rights.

Zionism is a political movement aiming for Jewish self-determination and the establishment of a Jewish state.

He has a deep respect for classical art.

Luxemburgism is known as a faction of socialism.