Philo Judaeus Quod Omnis Probus Liber Sit 79

[79] and there is not a single slave among them, but they are all free, aiding one another with a reciprocal interchange of good offices; and they condemn masters, not only as unjust, inasmuch as they corrupt the very principle of equality, but likewise as impious, because they destroy the ordinances of nature, which generated them all equally, and brought them up like a mother, as if they were all legitimate brethren, not in name only, but in reality and truth. But in their view this natural relationship of all men to one another has been thrown into disorder by designing covetousness, continually wishing to surpass others in good fortune, and which has therefore engendered alienation instead of affection, and hatred instead of friendship;