Asahel Nettleton relates the following anecdote regarding the proper response when receiving commendation or condemnation:

A man once said to an aged clergyman, ‘My neighbors are slandering me, and what shall I do?’ ‘Do your duty,’ said the clergyman, ‘and think nothing about it. If they are disposed to throw mud, let them throw mud; but do not attempt to wipe it off, lest you should wipe it all over you.’

Good advice, and the point is clear: I must not allow either praise or criticism to distract me from doing my duty.

From Asahel Nettleton: Life and Labours, p. 338.