Who said "The unexamined assumption is the prison of the unaware."?

This quote is attributed to Priest, Graham.

The unexamined assumption is the prison of the unaware. - Priest, Graham

"The unexamined assumption is the prison of the unaware."

Priest, Graham Freedom

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."

"Freedom to pursue your passion is precious."

"Freedom comes at a cost."

"Order isn't restriction. It's freedom."

"Freedom comes with responsibility"