Exchange is no robbery. [ Proverb ]

He that praises bestows a favour, he that detracts commits a robbery. [ Proverb ]

Thieves for their robbery have authority, when judges steal themselves. [ William Shakespeare ]

Neglect is enough to ruin a man; a man who is in business need not commit forgery or robbery to ruin himself; he has only to neglect his business, and his ruin is certain. [ A. Barnes ]

Then was I as a tree whose boughs did bend with fruit; but in one night, a storm or robbery, call it what you will, shook down my mellow hangings, nay, my leaves, and left me bare to weather. [ Shakespeare ]