Answer: Hunger is the primary motive that drives humans to wander to greener pastures.
Jack London was an American novelist, journalist and social activist. He is the author of the story "The Human Drift." The main argument of "The Human Drift" is that humans have always wandered the world due to hunger. When we discuss the interests of people who migrate, we often mention better opportunities or financial security. This can ultimately be reduced to the primitive impulse of hunger, as migrants look for the places that will best satisfy this need. He argues that this is always the case, regardless of the time period we chose to study.