In God's Garden: Saint Augustine of Canterbury

It was market-day in the great city of Rome, and the people were busy buying and selling and shouting, just as they do to-day with us, when market-day comes round. But there was a great difference between this Roman market and ours, a difference which would have seemed to us strange and cruel. For instead of sheep and oxen, or green vegetables from the country, they were selling men and boys, and even little maidens. There in the great market-place, with the sun beating down on their bare heads, they stood, looking with dull, despairing eyes, or with frightened glances at the crowds of buyers and sellers who were bargaining around.

Suddenly a hush fell on the crowd, and a stately figure was seen crossing the square. People stood aside and bent their heads in reverence as Gregory passed by, for he was Abbot of a great monastery in Rome, and was much beloved even by the rough Roman soldiers. He walked swiftly as if he did not care to linger in the market-place, for it grieved his gentle heart to see the suffering of the slaves when he could do nothing to help them.