Hesiod the Poet lived toward end of 8th century BCE, and was a Boeotian farmer, though an educated man with time to devote to written composition.

So, after all, there was not one kind of Strife alone, but all over the earth there are two.

As for the one, a man would
praise her when he came to understand her;
but the other is blameworthy:
and they are wholly different in nature.
For one fosters evil war and battle, being cruel:
her no man loves; but perforce,
through the will of the deathless gods,
men pay harsh Strife her honor due.

But the other is the elder daughter
of dark Night, and the son of Cronos
who sits above and dwells in the aether,
set her in the roots of the earth:
and she is far kinder to men.

She stirs up even the shiftless to toil;
for a man grows eager to work when
he considers his neighbor,
a rich man who hastens to plough and
plant and put his house in good order;
and neighbor vies with his neighbor
as he hurries after wealth.
This Strife is wholesome for men.

And potter is angry with potter, and
craftsman with craftsman,
and beggar is jealous of beggar,
and minstrel of minstrel.
Perses, lay up these things in your heart,
and do not let that Strife who delights
in mischief hold your heart back from work,
while you peep and peer and listen
to the wrangles of the court-house.