Every injury imports a damage, though it does not cost the party one farthing, and it is impossible to prove the contrary; for a damage is not merely pecuniary, but an injury imports a damage, when a man is hereby hindered of his right. As in an action for slanderous words, though a man does not lose a penny by reason of the speaking them, yet he shall have an action. So if a man give another a cuff on the ear, though it cost him nothing, no, not so much as a little diachylon, yet he shall have his action, for it is a personal injury.

2 Raym. Rep. 955. - Ashby v. White (1703)