If honesty cannot, knavery should not. [ Proverb ]

Deceiving of a deceiver is no knavery. [ Proverb ]

Knavery and flattery are blood relations. [ Abraham Lincoln ]

Knavery may serve a turn, but honesty never fails. [ Proverb ]

Knaves imagine nothing can be done without knavery. [ Proverb ]

Honesty and plain dealing puts knavery out of the bias. [ Proverb ]

Knavery, without luck, is the worst trade in the world. [ Proverb ]

Craft borders upon knavery; wisdom never uses, nor wants it. [ Proverb ]

We never deceive for a good purpose; knavery adds malice to falsehood. [ Bruyere ]

Wisdom without innocence is knavery, innocence without wisdom is folly. [ Proverb ]

Buffoonery and scurrility are the corruption of wit, as knavery is of wisdom. [ Proverb ]