As long therefore as luxury exists, there must be a corresponding amount of over-work and misery, whether it takes the name of poverty or of slavery. The fundamental difference between the two is that slavery originates in violence, and poverty in craft. The whole unnatural condition of society—the universal struggle to escape from misery, the sea-trade attended with so much loss of life, the complicated interests of commerce, and finally the wars to which it all gives rise—is due, only and alone, to luxury, which gives no happiness even to those who enjoy it, nay, makes them ill and bad-tempered. ...