SB 12.3.20

tretāyāṁ dharma-pādānāṁ
 turyāṁśo hīyate śanaiḥ
adharma-pādair anṛta-
 hiṁṣāsantoṣa-vigrahaiḥ
Synonyms: 
tretāyām — in the second age; dharma-pādānām — of the legs of religion; turya — one fourth; aṁśaḥ — part; hīyate — is lost; śanaiḥ — gradually; adharma-pādaiḥ — by the legs of irreligion; anṛta — by falsity; hiṁsā — violence; asantoṣa — dissatisfaction; vigrahaiḥ — and quarrel.
Translation: 
In Tretā-yuga each leg of religion is gradually reduced by one quarter by the influence of the four pillars of irreligion — lying, violence, dissatisfaction and quarrel.
Purport: 

By falsity truth is diminished, by violence mercy is diminished, by dissatisfaction austerity is diminished, and by quarrel charity and cleanliness are diminished.