The child worked eagerly for the extrinsic reward of a cookie, even though she enjoyed the activity itself.

The after-reward for completing the training was a small bonus and a certificate of recognition.

After years of volunteer work, she finally received a just reward when the community honored her with a commemorative plaque.

At the end of the term, the teacher handed each deserving pupil a small reward card for good conduct.

When she returned the lost wallet without hesitation, she smiled and said, 'virtue is its own reward.'

Although many chased fame and fortune, she quietly proved that Virtue is her own reward by helping neighbors without expecting anything in return.

When my neighbor fixed my fence without asking for anything, I was reminded that a good deed is its own reward.