Dhamma Verses (Dhammapada, KN 2)

5: The Chapter about Fools – 76
Learning only hurts a fool
A young man learned the art of stone-throwing, but used it to
kill a Paccekabuddha; he was reborn in Avīci, the hell of
relentless suffering, and later as a ghost whose head was
constantly crushed by sixty-thousand sledgehammers; the
Buddha explained what happens to fools who gain knowledge
with this verse.
72. Yāvad-eva anatthāya ñattaṁ bālassa jāyati,
hanti bālassa sukkaṁsaṁ, muddham-assa vipātayaṁ.
Learning arises for a fool
only to his disadvantage,
it destroys the fool’s good fortune,
it will destroy his very head.