1.
HYDRA, n. A kind of animal that the ancients catalogued under many heads.
Ambrose Bierce
3.
Intemperance is a hydra with a hundred heads. She never stalks abroad unaccompanied with impurity, anger, and the most infamous profligacies.
Saint John Chrysostom
5.
George unhinged his jaw and coughed up a little plastic bottle filled with chewable vitamins. "You're kidding," I said. "Are those Minotaur-shaped?" Hermes picked up the bottle and rattled it. "The lemon ones, yes. The grape ones are Furies, I think. Or are they hydras? At any rate, these are potent."
Rick Riordan
6.
Simply put, international terrorism made international cooperation mandatory rather than elective. Collective security has become the only real security against the hydra-headed monster of international terror.
John Ashcroft
7.
The hydra of corruption is only scotched, not dead. An investigation kills and it and its supporters dead. Let this be had.
Andrew Jackson