This makes me think...

Let no one think that it is enough for him to read if he lacks devotion, 

or to engage in speculation without spiritual Joy, 

or to be active if he has no piety, 

or to have knowledge without charity, 

or intelligence without humility, 

or study without God's grace, 

or to expect to know himself if he is lacking the infused wisdom of God.

~ St Bonaventure

(As quoted in paragraph 53 in Pastores dabo vobis from John Paul II)