Ayn Rand was a philosopher of the 20th century. Her philosophy of Objectivism has found a widespread following throughout the world. The main premise of her philosophy is that the only virtue that man can practise is to live for himself, independent of anyone else. She divides mankind into two classes: one is the Prime Movers, or the Creators, due to whom mankind progresses. Scientists, artists, musicians, poets, architects, industrialists, inventors, people who create, who live for the love of what they create, for whom creation is the highest form of virtue, fall into this category. The other is that of the Second Handers: people who live off the Prime Movers, who preach that creation is a sin and the only virtue is altruism.