Patton, sir is a military historian. He knows that Sicily, not Sardinia, has always been the key to Italy.
12 seconds sound clip from the Patton (1970) movie soundboard.
You can hear this line at 00:55:10 in the Blu-ray version of the movie.
Quote context
[...]
- It is obvious that North Africa will soon be lost.
- We must now anticipate the enemy's next move.
- I shall expect a staff report within 24 hours. That will be all.
- Steiger, you have said nothing.
- You think Patton will attack Sardinia? And why not?
- If Patton has his way, he will attack Sicily at Syracuse, as the Athenians did.
- Steiger, this is the twentieth century!
- But you must understand, sir Patton is a sixteenth-century man. May I read an example?
- He leaped out of his car, produced a revolver, and forced the men at gunpoint to release the girl.
[...]