Sallust, The Jugurthine War
John Selby Watson, Rev. John Selby Watson, M.A., Ed.

To these entreaties the king replied with a mildness far different from his real feelings. After putting to death Bomilcar, and many others whom he knew to be privy to the plot, he refrained from any further manifestation of resentment, lest an insurrection should be the consequence of it. But after this occurrence he had no peace either by day or by night; he thought himself safe neither in any place, nor with any person, nor at any time; he feared his subjects and his enemies alike; he was always on the watch, and was startled at every sound; he passed the night sometimes in one place, and sometimes in another, and often in places little suited to royal dignity; and sometimes, starting from his sleep, he would seize his arms and raise an alarm. He was indeed so agitated by extreme terror, that he appeared under the influence of madness.