By his order, Damocles was dressed in the richest garments, laid on the softest couch before the richest meal, and the servants were told to obey his every wish. This pleased Damocles greatly. He laughed and sang, ate and drank, and was enjoying himself most thoroughly.

By chance he idly gazed up at the ceiling, and saw a naked sword hanging by a single hair directly over his head. He grew pale with terror, the laughter died on his lips, and, as soon as he could move, he sprang from the couch, where he had been in such danger of being killed at any minute by the falling sword.

Dionysius with pretended surprise urged him to go back to his seat; but Damocles refused to do so, and pointed to the sword with a trembling hand. Then the tyrant told him that a person always haunted by fear can never be truly happy,an explanation which Damocles readily understood. Since then, whenever a seemingly happy and prosperous person is threatened by a hidden danger, it has been usual to compare him to Damocles, and to say that a sword is hanging over his head.

From: H. A. Guerber, The Story of the Greeks; edited for this online publication, by ELLOPOS BLOG