have the heart

have the heart (third-person singular simple present has the heart, present participle having the heart, simple past and past participle had the heart)

1. (chiefly in the negative) To have the capacity (to do something); to be able to bring oneself to do something, especially something cruel or hardhearted. [with to (+ infinitive)]

   I didn't have the heart to tell him we wouldn't ever come back to see him.

   • 2006, “Crazy”, in St. Elsewhere, performed by Gnars Barkley:

     My heroes have the heart to lose their lives out on the limb
     And all I remember is thinking "I want to be like them"

• have it in one