“If you did, it would be in such a grave, quiet manner, I should mistake it for sense.  Do you never laugh, Miss Eyre?  Don’t trouble yourself to answer—I see you laugh rarely; but you can laugh very merrily: believe me, you are not naturally austere, any more than I am naturally vicious.  The Lowood constraint still clings to you somewhat; controlling your features, muffling your voice, and restricting your limbs; and you fear in the presence of a man and a brother—or father, or master, or what you will—to smile too gaily, speak too freely, or move too quickly: but, in time, I think you will learn to be natural with me, as I find it impossible to be conventional with you; and then your looks and movements will have more vivacity and variety than they dare offer now.  I see at intervals the glance of a curious sort of bird through the close-set bars of a cage: a vivid, restless, resolute captive is there; were it but free, it would soar cloud-high.  You are still bent on going?”