That it has pleased God to make Holy Scripture obscure in certain places lest, if it were perfectly clear to all, it might be vulgarized and subjected to disrespect or be so misunderstood by people of limited intelligence as to lead them into error.
Pope Gregory VII, in response to the request made in 1079 by Vratislaus, duke of Bohemia, seeking permission to use Slavonic in local church services. Awake! magazine December 2011, page 7; They Tried to Keep God’s Word From the Masses.
Now, in our opinion, no author should be blamed for obscurity; nor should any pains be grudged in the effort to understand him, provided that he has done his best to be intelligible. Difficult thoughts are quite distinct from difficult words. Difficulty of thought is the very heart of poetry.
Alice Meynell, "Robert Browning" (1880), in Prose and Poetry: Centenary Volume (London: Jonathan Cape, 1947), pp. 93–94.
The evolutionary urge drives man to seek for intenser forms of fulfillment, since his basic urge is for more life, more consciousness, and this contentment has an air of stagnation that the healthy mind rejects. (This recognition lies at the centre of my own 'outsider theory': that there are human beings to whom comfort means nothing, but whose happiness consists in following an obscure inner-drive, an 'appetite for reality'.)
Some write their wrongs in marble: he more just, Stoop'd down serene and wrote them on the dust, Trod under foot, the sport of every wind, Swept from the earth and blotted from his mind, There, secret in the grave, he bade them lie, And grieved they could not 'scape the Almighty eye.