 He reduced official operating costs, walked his trips with a single assistant, and, by the studied lack of ceremony, placed his own frugality in striking contrast with the oppressive opulence of provincial magistrates.The rites of religion were celebrated with reasonable thrift, justice was administered with strict impartiality; usury was controlled with deep severity, and the usurers were banished.Sardinia had been for some time completely calmed, but according to Aurelius Victor, a revolt in the island was subdued by Cato during his Praetorship.