To be clever, one would think, is good.
But to not be clever might be better.
For cleverness seeks ways to reveal itself, thus tends to diminish modesty, which of the two, perhaps is less productive but is more becoming.
And cleverness, without compensating virtues, tends to have more enemies than friends.
Cleverness can be a useful tool; but in careless hands it can cause problems for one who exploits it as well as for others.
But let’s not condemn cleverness out of hand. Without it we might live still in an unlighted cave.