He was a strong and influential proponent of eugenics and racial hygiene.

The most influential proponent of reliabilism is Alvin Goldman.

He was also an influential proponent of wood engraving and woodcuts as art forms.

Madgwick was an influential proponent of adult learning and extension studies in tertiary education.

He was an influential proponent of the swift and highly debated introduction of free markets in Russia, known as shock therapy.

Over the last 50 years Swinburne has been a very influential proponent of philosophical arguments for the existence of God.

He served as a Methodist minister for over 40 years and also was an influential proponent of British Israelism.

Wang Yangming, most influential proponent of xinxue or "state of mind."

David Hume is probably the most influential proponent of skepticism.

French President Jacques Chirac was a very influential proponent of the project.