Authors:

In Japan people drive on the left. In China people drive on the right. In Vietnam it doesn't matter.

P. J. O'Rourke (2007). “All the Trouble in the World: The Lighter Side of Overpopulation, Famine, Ecological Disaster, Ethnic Hatred, Plague, and Poverty”, p.319, Grove/Atlantic, Inc.
In Japan people drive on the left. In China people drive on the right. In Vietnam it doesn't matter.