The French philosopher and economist Henri Saint-Simon (1760–1825) published numerous writings. Upon his death, his disciples endeavoured to pursue the dissemination of his ideas. A large number of great economists took the time to read Saint-Simon and his successors, and to write about them even when they did not share their ideas. It was the case of Auguste Walras (1801–1866) and his son Léon (1834–1910). The paper examines the relationship the two Walras had with the Saint-Simonians, considers their criticism of the Saint-Simonian political economy and economic policy and highlight their adherence to the opposition between idlers and workers.