Complex sentence: Known for his writings on ethnicity and race, such as "Beyond the Melting Pot" co-written with Daniel Patrick Moynihan, he was an early skeptic of Great Society programs such as expanded welfare and affirmative action.
Split into simpler sentences: Known for his writings on ethnicity and race, such as "Beyond the Melting Pot" co-written with Daniel Patrick Moynihan. He was an early skeptic of Great Society programs such as expanded welfare and affirmative action.