This website has information on forms of Human observation to be pretty broad. It doesn't have anything specific with Bolivian villagers or there looms.
http://www.psychologydiscussion.net/behaviour/7-methods-of-studying-human-behaviour/540
Loving with restraint is the key to long-lasting love.
<em>"Therefore love moderately; long love doth so;"</em>
As the whole play portrays apassionate love tends to not last, that is why he states that love should be meant to last, then it shouls be rationed.
Love makes people do crazy things
