cleverness

dad joke

is always potentially dangerous. It is a wicked world when a clever man turns his brain to crime.

It's a wicked world, and when a clever man turns his brain to crime it is the worst of all. Arthur Conan Doyle

is deviousness. The clever cat eats cheese and breathes down rat holes with baited breath.

The clever cat eats cheese and breathes down rat holes with baited breath. W. C. Fields

is an attribute that man usually avoids attributing to somebody else - unless it is an enemy.

Man usually avoids attributing cleverness to somebody else - unless it is an enemy.

is serviceable for everything, sufficient for nothing.

Cleverness is serviceable for everything, sufficient for nothing.