un comunicador que alude pronto a alguna debilidad es visto enseguida como alguien sincero. - Robert B. Cialdini

Freedoms once granted will not be relinquished without a fight.

A well-known principle of human behavior says that when we ask someone to do us a favor we will be more successful if we provide a reason. People simply like to have reasons for what they do.

Monkey See, Monkey Do . . . Monkey Die