Suetonius Quote

The courtiers tried every trick to lure or force him into making complaints against Tiberius; always, however, without success. He not only failed to show any interest in the murder of his relatives, but affected an amazing indifference to his own ill-treatment, behaving so obsequiously to his adoptive grandfather and to the entire household, that someone said of him, very neatly: "Never was there a better slave, or a worse master!"

The Twelve Caesars - Gaius Caligula