For we ourselves also were some time unwise, incredulous, erring, slaves to divers desires and pleasures, living in malice and envy, hateful, and hating one another.
Not as Cain, who was of the wicked one, and killed his brother. And wherefore did he kill him? Because his own works were wicked: and his brother's just.
Again I considered all the labours of men, and I remarked that their industries are exposed to the envy of their neighbour: so in this also there is vanity, and fruitless care.