'Fool' in the Bible

The wise man’s eyes are in his head, but the fool walks in darkness; and yet I know that [in the end] one fate happens to them both.

Then I said to myself, “As it happens to the fool, so death will also happen to me. What use is it then for me to be extremely wise?” Then I said in my heart, “This too is vanity (meaningless).”

For there is no [more] lasting remembrance of the wise man than of the fool, since in the days to come all will be long forgotten. And how does the wise man die? Even as the fool!

And who knows whether he will be a wise man or a fool? Yet he will have control over all the fruit of my labor for which I have labored by acting wisely under the sun. This too is vanity (futility, self-conceit).

The fool folds his hands [together] and consumes his own flesh [destroying himself by idleness and apathy].

For what advantage has the wise man over the fool [for being worldly-wise is not the secret to happiness]? What advantage has the poor man who has learned how to walk [publicly] among the living [with men’s eyes on him; for being poor is not the secret to happiness either]?

For like the crackling of [burning] thorn bushes under a pot,So is the laughter of the fool;And this too is vanity (futility).

Even when a fool walks along the road, his [common] sense and good judgment fail him and he demonstrates to everyone that he is a fool.

The words of a wise man’s mouth are gracious and win him favor, but the lips of a fool consume him;

Yet the fool multiplies words, though no man knows what will happen, and who can tell him what will come after he is gone?