Who said "Imagination is the engine of philosophical progress."?

This quote is attributed to Priest, Graham.

Imagination is the engine of philosophical progress. - Priest, Graham

"Imagination is the engine of philosophical progress."

Priest, Graham Imagination

Philosopher-Logician Australian Born 1948 (age 78)

"Contradiction is not inconsistency."

"A contradiction at the level of thought does not mean reality is contradictory."

"Logic is the study of the laws of thought."

"Paraconsistency allows for true contradictions."

"Imagination is more powerful than knowledge."

"The world is full of wonders if you know where to look."

"You have the imagination of a child, Lucy"

"The world is full of mysteries waiting to be solved."