"Sincerity is the same in a corner alone, as it is before the face of the world. It knows not how to wear two vizards, one for an appearance before men, and another for a short snatch in a corner; but it must have God, and be with him in the duty of prayer. It is not lip-labour that it doth regard, for it is the heart that God looks at, and that which sincerity looks at, and that which prayer comes from, if it be that prayer which is accompanied with sincerity."