Vasiṣṭha's teaching (Mahārāmāyaṇa) 6.28.77

6.28.77

padaṃ kurvanti dagdhāsu sthalīṣu hariṇā iva .
rāgo dveṣaśca sarpau dvau na vilīnau manovile .. 77

77. [Sanskrit available] No good quality can have its abode in the heart that is troubled by the waves of faults; as no stag will set its foot on the ground, heated by burning sands and wild fires.

78. [Sanskrit available] What acquisitions does he not make, in whose heart there grows the kalpa tree of desire, and which is not infested by the snakes of ardent desire or dislike (the two cankers of human breast).