How do know if its a threat or a promise?

Real threats towards another person are: Phoning or texting and threatening you with spreading untrue gossip or physical harm. Whispered threats when they see you such as 'I'm going to get you...

You don't you have to believe in the polotician the one who gives more sensible promises is probably the one who will keep promises more because they know if they promise to do something stupid like...

Only an idiot would think of some thing like that to say, shun you.

like anybody knows.

I'll take a stab at it: This seems to mean that it is a high order of knowledge to have a sense of the limits of one's knowledge. Being 'smart' and 'informed' or 'savvy' is great, but being aware of...