Missionary opinion was divided on whether POJ was desirable as an end in itself as a full-fledged orthography, or as a means to literacy in Chinese characters. William Campbell described POJ as a step on the road to reading and writing the characters, claiming that to promote it as an independent writing system would inflame nationalist passions in China, where characters were considered a sacred part of Chinese culture. Taking the other side, Thomas Barclay believed that literacy in POJ should be a goal rather than a :