Do not inhabit a country where you are not respected, cannot earn your livelihood, have no friends, or cannot acquire knowledge.
Do not stay for a single day where there are not these five persons: a wealthy man, a Brāhmaṇa well versed in Vedic lore, a king, a river and a physician.
Wise men should never go into a country where there are no means of earning wealth, where the people have no dread of anybody, have no sense of shame, no intelligence, or a charitable disposition.
—Kautilya, according to the Cāṇakya Nītiśāstra