तत्समुत्थो हि लोकस्य जायते वर्णसङ्करः । येन मूलहरोऽधर्मः सर्वनाशाय कल्पते ॥ ३५३ ॥
sanskrit
For by (adultery) is caused a mixture of the castes (varna) among men; thence (follows) sin, which cuts up even the roots and causes the destruction of everything.
english translation