One verse

Srimad Bhagavatam 12.3.22

12.3.22

तप:सत्यदयादानेष्वर्धं ह्रस्वति द्वापरे । हिंसातुष्टय‍नृतद्वेषैर्धर्मस्याधर्मलक्षणै: ॥ २२ ॥

tapaḥ-satya-dayā-dāneṣv ardhaṁ hrasvati dvāpare hiṁsātuṣṭy-anṛta-dveṣair dharmasyādharma-lakṣaṇaiḥ

tapaḥ
of austerity
satya
truth
dayā
mercy
dāneṣu
and charity
ardham
one half
hrasvati
diminishes
dvāpare
in the age of Dvāpara
hiṁsā
by violence
atuṣṭi
dissatisfaction
anṛta
untruth
dveṣaiḥ
and hatred
dharmasya
of religion
adharma-lakṣaṇaiḥ
by the qualities of irreligion

In Dvāpara-yuga the religious qualities of austerity, truth, mercy and charity are reduced to one half by their irreligious counterparts — dissatisfaction, untruth, violence and enmity.