 and desiderative (desires for sex and food).Ethics was the problem of how to deal with these passions and restore reason as the dominant faculty.In physics, Posidonius advocated a theory of cosmic "sympathy" (συμπάθεια, "sumpatheia"), the organic interrelation of all appearances in the world, from the sky to the earth, as part of a rational design uniting humanity and all things in the universe, even those that were temporally and spatially separate.