In Medias Res/Quotes

Homer doesn't begin the Trojan War with Leda's twin eggs: he always rushes toward the outcome, and he carries the listener along with him into the middle of things, just as if they were familiar.

—Horace

You hit the ground running

—Smash Mouth

Most epic poets plunge in medias res
(Horace makes this the heroic turnpike road),
And then your hero tells when'er you please
What went before by way of episode,

While seated after dinner at his ease,

Beside his mistress in some soft abode,

Palace, or garden, paradise, or cavern,

Which serves the happy couple for a tavern.

—Lord Byron's Don Juan, I.6

Start as late in the story as possible.

—Writing proverb