As to the mouth, it delights at times in laughter; it is disposed to impart all that the brain conceives; though I daresay it would be silent on much the heart experiences. Mobile and flexible, it was never intended to be compressed in the eternal silence of solitude: it is a mouth which should speak much and smile often, and have human affection for its interlocutor.
Charlotte Bronte, Emily Bronte, Anne Bronte (2009). “The Bronte Sisters: Three Novels: Jane Eyre; Wuthering Heights; and Agnes Grey (Penguin Classics Deluxe Edition)”, p.166, Penguin