I would say trust is something that is earnt..though can easily be taken away. Once trust is broken, this seems to be something that very difficult if not impossible to fully restore. If you trust yourself first...you become reliant on yourself. Finding trusting friends, colleagues etc is a bonus.
When I see somebody the first time - I trust him. And if he's making something not good for me - I'm forgiving and still believing that I can trust him anyway. In relationships.
And in my business too