A few months before the murder [of Domitian] a raven perched on the Capitol and croaked out the words: "All will be well!" – a portent which some wag… - Suetonius

Some characteristic expressions he used rather frequently in everyday speech can be seen in letters in his own hand, in which he sometimes writes, when he wants to say that certain men will never pay: "they'll pay on the Greek Kalends." And when he wants to encourage his addressee to put up with present circumstances whatever they are, he says: "Let us be satisfied with the Cato we have."

When [his son] Drusus died Tiberius was not greatly concerned, and went back to his usual business almost as soon as the funeral ended, cutting short the period of official mourning; in fact, when a Trojan delegation arrived with condolences somewhat belatedly, Tiberius grinned, having apparently got over his loss, and replied: "May I condole with you, in return, on the death of your eminent fellow-citizen Hector?"

Nero watched the conflagration from the Tower of Maecenas, enraptured by what he called "the beauty of the flames"; then put on his tragedian's costume and sang The Sack of Ilium from beginning to end.