One verse

Srimad Bhagavatam 9.4.70

9.4.70

तपो विद्या च विप्राणां नि:श्रेयसकरे उभे । ते एव दुर्विनीतस्य कल्पेते कर्तुरन्यथा ॥ ७० ॥

tapo vidya ca vipranam nihsreyasa-kare ubhe te eva durvinitasya kalpete kartur anyatha

tapah
austerities
vidya
knowledge
ca
also
vipranam
of the brahmanas
nihsreyasa
of what is certainly very auspicious for upliftment
kare
are causes
ubhe
both of them
te
such austerity and knowledge
eva
indeed
durvinitasya
when such a person is an upstart
kalpete
become
kartuh
of the performer
anyatha
just the opposite.

For a brahmana, austerity and learning are certainly auspicious, but when acquired by a person who is not gentle, such austerity and learning are most dangerous.