[–] FritzTheKat 0 points 1 point 1 point (+1|-0) ago
The love of money is the root of all evil.
[–] ArsCortica 0 points 2 points 2 points (+2|-0) ago
From a behaviorist model, the sexual drive. The latter fuels greed as higher wealth produces higher social standing and therefore a larger number of mating partners. It all goes downhill from there.
[–] WhiteRonin 0 points 1 point 1 point (+1|-0) ago
People.