Make haste slowly.

Augustus (63 BC - AD 14) Roman Emperor, statesman [Imperator Gaius Julius Caesar Augustus; b. Gaius Octavius]

(Attributed)

In Suetonius, Lives of the Caesars (c. AD 121). Quoting a Greek proverb, according to Aulus Gellius.

Alt. trans.: "Hasten deliberately." See Howell (1659).