Plutarch on Self-Commendation (Box 15.4)

But those who are forced to speak in their own praise are made more endurable by another procedure as well: not to lay claim to everything, but to unburden themselves, as it were, of honor, letting part of it rest with chance and part with God.

Plutarch, Moralia, vol. 7, trans. Philip H. De Lacy and Benedict Einarson, Loeb Classical Library (Cambridge, MA: Harvard University Press, 1959), §542E (On Praising Oneself Inoffensively 11).