1.   And then Nancy will harden her heart against him.

2.   But difficulties did not harden his heart.

3.   He hardened his heart and turned on his computer, smiling acidly at the screen.

4.   He tried to harden his heart in advance, but knew it was just a front.

5.   She hardened her heart and thought she should swiftly make it clear she had not come in search of him.

6.   Today, if you hear his voice, do not harden your hearts.

7.   When he had left her with a tiny baby, she had hardened her heart somehow.

8.   Her years of drunken bickering hardened my heart.

9.   I have a suspicion that the justifiable coverage we got in the media hardened the hearts at Shire Hall.