As when swift hounds, experienc'd in the chase,
Through some wide forest, o'er the scented grass
The bounding hind, or horned goat pursue,
Near, and more near their panting prey they view;
And eager stretching, the short space to gain,
They snap, and grind their gnashing fangs in vain.

Lines 378–240 - Argonautica (3rd century BC) - Book II