Trust

a relationship reliance. prediction of reliance on an action, based on the knowledge of a party. a statement about what is otherwise unknown. mental state, which cannot be measured directly.

is it in nature to rely and to have an otherwise constant positive mental state or is it in most natures to be suspicious and to doubt?perhaps it's all rather subjective. my opinion would be that most natures are to doubt but also to bear in mind of "innocent till proven guilty". that being said, the best option is the unknown. what you do not know does not hurt. and when it does come through, it's a whole different story.