Americans eat oysters but not snails. The French eat snails but not locusts. The Zulus eat locusts but not fish. The Jews eat fish but not pork. The Hindus eat pork but not beef. The Russians eat beef but not snakes. The Chinese eat snakes but not people. The Jalé of New Guinea find people delicious.
Ian Robertson, Sociology , pg.67
The diversity of our languages, customs, and expressive behaviors confirms that much of our behavior is socially programmed, not hardwired.
Before the French Revolution, when the people of France were starving, they refused to eat potatoes because they thought they were dirty.