Quote from St. Bernard

I just like this quote about knowledge:

"There are some who desire knowledge merely for its own sake;
and that is shameful curiosity.
And there are others who desire to know, in order that they may themselves be known;
and that is vanity, disgraceful too.
Others again desire knowledge in order to acquire money or preferment by it;
that too is a discreditable quest.
But there are also some who desire knowledge, that they may build up the souls of others with it;
and that is charity.
Others, again, desire it that they may themselves be built up thereby;
and that is prudence.
Of all these types, only the last two put knowledge to the right use"

(St. Bernard, Sermon on the Canticle of Canticles).