Extremism threatens the stability of society.

He is deeply involved in the study of Islamism.

My sister decided to become a vegetarian.

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

Liberal economics believes in the power of the market.

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.

Racism is a major issue in society, and it requires everyone's cooperation to solve it.

He is deeply studying the philosophy of nihilism.