According to the Stoics, all vice was resolvable into folly: according to the Christian principle, it is all the effect of weakness.
It is among the evils of slavery that it taints the very sources of moral principle. It establishes false estimates of virtue and vice: for what can be more false and heartless than this doctrine which makes the first and holiest rights of humanity to depend upon the color of the skin?
But the greatest part of mankind float betwixt vice and virtue.
Work keeps us from three great evils: boredom, vice, and poverty.