UPDATE: Kohenari did a little digging and found a better translation of this statement from Plato’s Republic. It’s perhaps less quotable, but I thought it should be added here:
“Shall we, then, portray the happiness,” said I, “of the man and the state in which such a creature arises?”
“By all means let us describe it,” he said.
“Then at the start and in the first days does he not smile upon all men and greet everybody he meets and deny that he is a tyrant, and promise many things in private and public, and having freed men from debts, and distributed lands to the people and his own associates, he affects a gracious and gentle manner to all?”
“Necessarily,” he said. “But when, I suppose, he has come to terms with some of his exiled enemies and has got others destroyed and is no longer disturbed by them, in the first place he is always stirring up some war so that the people may be in need of a leader.”
“That is likely.”