Who said "Strength is not the absence of doubt, but its conquest."?

This quote is attributed to Priest, Graham.

Strength is not the absence of doubt, but its conquest. - Priest, Graham

"Strength is not the absence of doubt, but its conquest."

Priest, Graham Strength

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."

"Strength comes from within."

"A woman should be proud of who she is."

"A strong woman can overcome anything."

"The only thing I'm good at is killing."