“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!”
“So a man will sometimes go through half an hour of mortal terror with a brigand, yet when the knife is at his throat at last, he feels no fear.”
“There's nothing half so mortal as a grey goose feather.”
“Thus a man will sometimes suffer half an hour of mortal fear with a robber, but once the knife is finally at his throat, even fear vanishes.”
“You're a Demigod Percy, half god and half mortal!”
“They whispered to Caesar that he was mortal, then sold daggers at half-price in the grand March sale.”