Gaius Suetonius Tranquillus,
The Lives of the Twelve Caesars…
“ When he was on the point of condemning the ex-consul Arrecinius Clemens, one of his intimates and tools, he treated him with as great favour as before, if not greater, and finally, as he was taking a drive with him, catching sight of his accuser he said: "Pray, shall we hear this base slave to-morrow?"To abuse men's patience the more insolently, he never pronounced an unusually dreadful sentence without a preliminary declaration of clemency, so that there came to be no more certain indication of a cruel death than the leniency of his preamble. ”
