“ 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. ”
 Charlotte Brontë, Jane Eyre (16 October 1847). copy citation

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“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?»
«It has struck nine, sir.»
«Never mind,—wait a minute: Adèle is not ready to go to bed yet. My position, Miss Eyre, with my back to the fire, and my face to the room, favours observation.” source

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