[4.21] Indeed, where the heart of this art is full, the "Lord, Lord!" Will not help much, and the way, the truth and the life will be so narrow and thorny that it will hardly ever be able to be transformed!

[4.22] What good is reading a thousand and another thousand books that are ever so full of truth? Will they bring to life someone who is daily concerned to stuff his heart more and more day by day with all the ungratefulness of the world?!