Who said "The only certainty is the existence of uncertainty."?

This quote is attributed to Priest, Graham.

The only certainty is the existence of uncertainty. - Priest, Graham

"The only certainty is the existence of uncertainty."

Priest, Graham Knowledge

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."

"We're not just after treasure. We're preserving history."

"The mind is humanity's greatest tool."

"A tidy room reflects a tidy mind."

"You can learn a lot about a person by how they keep their space."