Every now and then, Margaret had to remind herself of her father's regard for Mr. Thornton, to subdue the irritation of weariness that was stealing over her, and bringing on one of the bad headaches to which she had lately become liable. 
Margaret had to remind herself of her father's regard for Mr. Thornton, to subdue the weariness that was stealing over her, and bringing on one of the bad headaches to which she had lately become liable. 