“Yes, man is mortal, but that would be only half the trouble. The worst of it is that he's sometimes unexpectedly mortal - there's the trick!”

“You're a Demigod Percy, half god and half mortal!”

“Snatch him, ye Gods, from mortal eyes!”

“He was the average mortal. It troubled him to get used to the world one way and then suddenly have it turn different.”

“The example of a syllogism that he had studied in Kiesewetter's logic: Caius is a man, men are mortal, therefore Caius is mortal, had throughout his whole life seemed to him right only in relation to Caius, but not to him at all.”

“Play on, mortal. Every god falls at a mortal’s hands. Such is the only end to immortality.”

“Sometimes mortals can be more horrible than monsters.”

“The works of the righteous would be mortal sins if they would not be feared as mortal sins by the righteous themselves out of pious fear of God.”

“All men are mortal, he tells us, but some are more mortal than others.”

“To be mortal is the most basic human experience, and yet man has never been able to accept it, grasp it, and behave accordingly. Man doesn't know how to be mortal. And when he dies, he doesn't even know how to be dead.”