Ben Franklin, who strove to exemplify what he considered to be the seven signal virtues, once wrote to his son that he had quite given up on humility, as he was certain he would be proud of achieving it if he ever did.

HaHa! That gave me a good chuckle, thanx!
Indeed, a similar insight is also spread amongst the buddhist philosophers, where it is said that if you want to get rid of desire, this in itself is a desire and so one wants to get rid of the desire of not desiring.

But as being humbled is nothing one would be proud of, just humble, I bet, Franklin wrote it with a twinkling eye.