SB 10.84.31

sannikarṣo ’tra martyānām
 anādaraṇa-kāraṇam
gāṅgaṁ hitvā yathānyāmbhas
 tatratyo yāti śuddhaye
Synonyms: 
sannikarṣaḥ — proximity; atra — here (in this world); martyānām — for mortals; anādaraṇa — of disregard; kāraṇam — a cause; gāṅgam — (the water) of the Ganges; hitvā — leaving; yathā — as; anya — other; ambhaḥ — to water; tatratyaḥ — one who lives near it; yāti — goes; śuddhaye — for purification.
Translation: 
In this world familiarity breeds contempt. For example, one who lives on the banks of the Ganges might travel to some other body of water to be purified.