Gregory Palamas, a monk of Mount Athos and metropolitan of Thessalonike from 1347 to 1357, was a leading fourteenth-century Byzantine intellectual. He was the chief spokesman for the hesychasts in the controversy bearing that name, which began when a charge of heresy was laid against him in 1340 and ended with his proclamation as a saint in 1368. Although excellent English translations of some of Palamas' theological writings are available, very...