Agis and Cleomenes

Now, the Lacedaemonians have temples of Death, Laughter, and that sort of thing, as well as of Fear. And they pay honours to Fear, not as they do to the powers which they try to avert because they think them baleful, but because they believe that fear is the chief support of their civil polity.

For this reason, too, when the ephors enter upon their office, as Aristotle says, they issue a proclamation commanding all men to shave their moustaches, and to obey the laws, that these may not be severe upon them. They insist upon the shaving of the moustache, I think, in order that they may accustom the young men to obedience in the most trifling matters.