Agis and Cleomenes (Agis.2.1-Agis.2.2)

The man, indeed, whose goodness is complete and perfect will have no need at all of glory, except so far as glory gives him access to achievement by reason of the confidence men have in him; but a man who is still young and is fond of honours may be allowed to plume and exalt himself somewhat even upon glory, provided that glory is the outcome of noble deeds. For the virtues, which are incipient and budding in the young, are confirmed in their proper development, as Theophrastus says, by the praises of men, and complete their growth under the incentive of pride.

But excess is everywhere harmful, and in the case of men who cherish political ambitions, it is deadly; for it sweeps them away into manifest folly and madness as they grasp after great power, when they refuse to regard what is honourable as glorious, but consider that what is glorious is good. Therefore, what Phocion said to Antipater, who demanded from him some dishonourable service, Thou canst not have Phocion as thy friend and at the same time thy flatterer, this, or something akin to this, must be said to the multitude: