Let another man praise thee, and not thine own mouth; a stranger, and not thine own lips.
Que te alabe el extraño, y no tu boca; el forastero, y no tus labios.
This proverb speaks quite well for itself, there is not a whole lot I can say that would make it any more clear. We need to lay our arrogance to the side. Our talents are not from our own merits, they are a gift from God.