Eutropius, Outline of Roman History 8.5.1

A saying of Trajan.

amicis enim culpantibus quod nimium circa omnes communis esset, respondit talem se imperatorem esse privatis quales esse sibi imperatores privatus optasset.

When his friends found fault with him for being too affable with everyone, he replied that he was such an emperor towards private citizens as, when he had been a private citizen, he had wished for emperors to be towards him.

Eutropius, Outline of Roman History 1.12

nono anno post reges exactos, cum gener Tarquini ad iniuriam soceri vindicandam ingentem collegisset exercitum, nova Romae dignitas est creata, quae dictatura appellatur, maior quam consulatus.

In the ninth year after the kings were expelled, when Tarquinius’ son-in-law had gathered together an army to avenge the wrong done to his father-in-law, a new office was created at Rome, which is called the Dictatorship and is greater than the Consulship.